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Showing posts with label Phishing Attacks. Show all posts

New SMTP Cracking Tool for 2024 Sold on Dark Web Sparks Email Security Alarm

 

A new method targeting SMTP (Simple Mail Transfer Protocol) servers, specifically updated for 2024, has surfaced for sale on the dark web, sparking significant concerns about email security and data privacy.

This cracking technique is engineered to bypass protective measures, enabling unauthorized access to email servers. Such breaches risk compromising personal, business, and government communications.

The availability of this tool showcases the growing sophistication of cybercriminals and their ability to exploit weaknesses in email defenses. Unauthorized access to SMTP servers not only exposes private correspondence but also facilitates phishing, spam campaigns, and cyber-espionage.

Experts caution that widespread use of this method could result in increased phishing attacks, credential theft, and malware distribution. "Organizations and individuals must prioritize strengthening email security protocols, implementing strong authentication, and closely monitoring for unusual server activity," they advise.

Mitigating these risks requires consistent updates to security patches, enforcing multi-factor authentication, and using email encryption. The emergence of this dark web listing highlights the ongoing threats cybercriminals pose to critical communication systems.

As attackers continue to innovate, the cybersecurity community emphasizes vigilance and proactive defense strategies to safeguard sensitive information. This development underscores the urgent need for robust email security measures in the face of evolving cyber threats.

FakeCall Malware for Android Escalates Threat, Hijacks Outgoing Bank Calls

 

A newly evolved version of the FakeCall malware, a dangerous Android banking trojan, has been discovered hijacking users’ outgoing calls to their financial institutions, redirecting them to phone numbers controlled by attackers. The malware, first identified by Kaspersky in April 2022, focuses on voice phishing (vishing) scams, tricking victims into revealing sensitive banking information. 

The trojan presents a fake call interface that closely mimics Android’s default dialer, convincing victims they are communicating with legitimate bank representatives. 

This makes it challenging for users to discern the deception. When attempting to call their bank, the malware secretly redirects the call to attackers, who impersonate bank officials to steal personal information and money from accounts. A new report from Zimperium reveals that the latest FakeCall variant further enhances its capabilities. 

By tricking users into setting it as the default call handler during installation, the malware gains the ability to intercept both incoming and outgoing calls. In addition, the malware manipulates the Android user interface to show the bank’s actual phone number while connecting the victim to a scammer, deepening the illusion of legitimacy. The updated malware also adds new, though still developing, functionalities. 

It now uses Android’s Accessibility Service to simulate user actions, control the dialer interface, and automatically grant itself permissions. FakeCall’s operators have also introduced a Bluetooth listener and a screen state monitor, indicating ongoing development toward more advanced attack methods. Additional commands integrated into the latest version include capturing live screen content, taking screenshots, and accessing or deleting device images. 

These upgrades demonstrate the malware’s evolving sophistication, as it becomes harder to detect and remove. Security experts recommend avoiding the manual installation of Android apps through APKs, encouraging users to rely on the Google Play Store for app downloads. Though malware can still infiltrate Google Play, the platform’s security measures, such as Google Play Protect, can help identify and remove malicious apps when detected.

Session Hijacking Surges: Attackers Exploit MFA Gaps with Modern Tactics

 

As multi-factor authentication (MFA) becomes more common, attackers are increasingly resorting to session hijacking. Evidence from 2023 shows this trend: Microsoft detected 147,000 token replay attacks, marking a 111% increase year-over-year. Google reports that attacks on session cookies now rival traditional password-based threats.

Session hijacking has evolved from old Man-in-the-Middle (MitM) attacks, which relied on intercepting unsecured network traffic. Today, these attacks are internet-based, focusing on cloud apps and services. Modern session hijacking involves stealing session materials like cookies and tokens, enabling attackers to bypass standard security controls like VPNs, encrypted traffic, and even MFA.

The rise of identity-based attacks is a result of the growing complexity of user accounts, with each person managing multiple cloud-based services. Once attackers gain access to an active session, they can bypass MFA, leveraging the valid session tokens, which often stay active longer than expected.

Modern phishing toolkits, like AitM and BitM, make hijacking easier by allowing attackers to intercept MFA processes or trick users into controlling their browser. Infostealers, a newer tool, capture session cookies from the victim’s browser, putting multiple applications at risk, especially when EDR systems fail to detect them.

Infostealer infections are often traced back to unmanaged personal devices, which sync browser profiles with work devices, leading to the compromise of corporate credentials. EDRs aren’t always reliable in stopping these threats, and attackers can still resume stolen sessions without re-authentication, making it difficult for organizations to detect unauthorized access.

Passkeys offer some protection by preventing phishing, but infostealers bypass authentication entirely. While app-level controls exist to detect unauthorized sessions, many are inadequate. Companies are now considering browser-based solutions that monitor user agent strings for signs of session hijacking, offering a last line of defense against these sophisticated attacks.

Hackers Use Auto-reply to Deliver Crypto-miner Via Malicious Emails

Hackers Use Auto-reply to Deliver Crypto-miner Via Malicious Emails

Threat actors use new techniques to distribute malware, which is evolving constantly. In a recent attack, they used malicious e-mail auto-replies to deliver crypto-mining malware. Russian cybersecurity firm F.A.C.C.T. said that threat actors breached e-mail accounts and set up automatic replies containing links to cryptocurrency mining malware.

Auto-replies for Malware Distribution

In traditional malware distribution attacks, hackers used malicious downloads, compromised websites, and phishing emails. But the new attack method uses auto-replies, experts from F.A.C.C.T explained that the new technique was employed in delivering the Xmrig crypto-miner to workers at Russian tech companies, insurance firms, financial businesses, and retail marketplaces. Experts found 150 emails that contained Xmrig earlier this year. 

Cybercriminals Using New Methods

Dmitry Eremenko, senior analyst at F.A.C.C.T said “This method of malware delivery is dangerous because the potential victim initiates communication first. This is the main difference from traditional mass mailings, where the recipient often receives an irrelevant email and ignores it.” 

Despite not looking convincing, E-mails sent through auto-replies didn't raise suspicions. To avoid detection, the hackers used a scan of a real invoice for equipment payment, different than subject mail. It means the companies as well as users who are in contact with the breached mail can become targets. 

Use of cryptocurrency mining software

Xmrig is an open-source cryptocurrency mining software mainly used for mining Monero (XMR). Cybercriminals have been using new techniques to deliver Xmrig to target devices. For instance, in one campaign, the hackers used a pirated version of Final Cut Pro (a video editing software) to deploy the crypto-miner on Apple computers.

F.A.C.C.T doesn't have any information regarding the main culprit behind the attack and their success. Experts do believe that the breached email accounts had a history of their credentials leaked on darknet, including their data. Breached accounts include construction companies, a furniture factory, a farm, and small trading firms. 

To stay safe, the report suggests “do not save passwords in browsers, install unlicensed software, because it may contain stealers, do not follow dubious links in the mail and do not enter your data on dubious sites (phishing)

RansomHub Ransomware: Exploiting Trusted Tools to Evade Detection

RansomHub Ransomware: Exploiting Trusted Tools to Evade Detection

Ransomware groups continue to innovate and adapt their tactics to bypass security measures. One such group, RansomHub, reported by Malwarebytes, has recently garnered attention for its sophisticated approach to disabling Endpoint Detection and Response (EDR) systems. By leveraging Kaspersky’s TDSSKiller, a legitimate rootkit removal tool, RansomHub has managed to execute its malicious payloads undetected, posing a significant threat to organizations worldwide.

The Rise of RansomHub

RansomHub is a relatively new player in the ransomware scene, but it has quickly made a name for itself with its advanced techniques and targeted attacks. Unlike traditional ransomware groups that rely on brute force methods or simple phishing campaigns, RansomHub employs a more nuanced strategy. By using legitimate software tools in unexpected ways, they can evade detection and maximize the impact of their attacks.

The Role of Kaspersky’s TDSSKiller

Kaspersky’s TDSSKiller is a well-known tool in the cybersecurity community, designed to detect and remove rootkits from infected systems. Rootkits are a type of malware that can hide the presence of other malicious software, making them particularly dangerous. TDSSKiller is widely trusted and used by security professionals to clean compromised systems.

However, RansomHub has found a way to exploit this tool for malicious purposes. By incorporating TDSSKiller into their attack chain, they can disable EDR software that would otherwise detect and block their ransomware. This tactic is particularly insidious because it uses a trusted tool to carry out malicious actions, making it harder for security teams to identify and respond to the threat.

The Attack Chain

RansomHub’s attack chain typically begins with a phishing email or a compromised website that delivers the initial payload. Once the ransomware is on the target system, it uses a variety of techniques to escalate privileges and gain control over the machine. This is where TDSSKiller comes into play.

By running TDSSKiller, the ransomware can disable EDR software and other security measures that would normally detect and block the attack. With these defenses out of the way, RansomHub can then proceed to encrypt the victim’s files and demand a ransom for their release. In some cases, they also use a credential-harvesting tool called LaZagne to extract sensitive information, further increasing the pressure on the victim to pay the ransom.

Threats Posed by Tools

The use of legitimate tools like TDSSKiller in ransomware attacks highlights a significant challenge for the cybersecurity community. Traditional security measures are often designed to detect and block known malware and suspicious behavior. However, when attackers use trusted tools unexpectedly, these measures can be less effective.

This tactic also underscores the importance of a multi-layered approach to cybersecurity. Relying solely on EDR software or other endpoint protection measures is no longer sufficient. Organizations must implement a comprehensive security strategy that includes network monitoring, threat intelligence, and user education to detect and respond to these advanced threats.

How to Protect Your Accounts from 2FA Vulnerabilities: Avoid Common Security Pitfalls

 

Securing an account with only a username and password is insufficient because these can be easily stolen, guessed, or cracked. Therefore, two-factor authentication (2FA) is recommended for securing important accounts and has been a mandatory requirement for online banking for years.

2FA requires two distinct factors to access an account, network, or application, which can be from the following categories:
  • Knowledge: Something you know, like a password or PIN.
  • Possession: Something you have, such as a smartphone or security token like a Fido2 stick.
  • Biometrics: Something you are, including fingerprints or facial recognition.
For effective security, the two factors used in 2FA should come from different categories. If more than two factors are involved, it's referred to as multi-factor authentication. While 2FA significantly enhances security, it isn't completely foolproof. Cybercriminals have developed methods to exploit vulnerabilities in 2FA systems.

1. Man-in-the-Middle Attacks: Phishing for 2FA Codes
Despite the secure connection provided by Transport Layer Security (TLS), attackers can use various techniques to intercept the communication between the user and their account, known as "man-in-the-middle" attacks. A common approach involves phishing pages, where attackers create fake websites that resemble legitimate services to trick users into revealing their login credentials. These phishing sites can capture not only usernames and passwords but also the 2FA codes, allowing attackers to access accounts in real time. This type of attack is highly time-sensitive, as the one-time passwords used in 2FA typically expire quickly. Despite the complexity, criminals often use this method to steal money directly.

2. Man-in-the-Browser Attacks: Malware as a Middleman
A variation of man-in-the-middle attacks involves malware that integrates itself into the victim’s web browser. This malicious code waits for the user to log in to services like online banking and then manipulates transactions in the background. Although the user sees the correct transfer details in their browser, the malware has altered the transaction to divert funds elsewhere. Notable examples of such malware include Carberp, Emotet, Spyeye, and Zeus.

Prevention Tip: When authorizing transactions, always verify the transfer details, such as the amount and the recipient's IBAN, which are typically sent by banks during the 2FA process.

3. Social Engineering: Tricking Users Out of Their 2FA Codes
Attackers may already have access to usernames and passwords, possibly obtained from data breaches or through malware on the victim's device. To gain the second factor needed for access, they may resort to direct contact. For instance, they may pose as bank employees, claiming to need 2FA codes to implement a new security feature. If the victim complies, they unknowingly authorize a fraudulent transaction.

Prevention Tip: Never share your 2FA codes or authorizations with anyone, even if they claim to be from your bank or another trusted service. Legitimate service representatives will never ask for such confidential information.

Understanding these threats and remaining vigilant can significantly reduce the risks associated with 2FA vulnerabilities.

Quishing Scams Exploit Microsoft Sway Platform

 


It has been discovered that a new phishing campaign is being run using Microsoft Sway, which has been found by researchers. A series of attacks have been called the "Quishing" campaign to describe what is happening. The practice of "squishing" is a form of phishing that uses QR codes to lead people to malicious websites. An example of Quishing is embedding malicious URLs into a QR code to commit phishing. 

A few groups of victims in Asia and North America are primarily focusing on the campaign. In late December, researchers noticed that an unexpected spike in traffic to unique Microsoft Sway phishing pages arose as a result of a campaign called "quishing," which targeted Microsoft Office credentials.  As defined by Netskope Threat Labs, quishing is essentially phishing to trick users into opening malicious pages by presenting them with QR codes, which are commonly used in many forms of phishing. 

According to a spokesperson for the campaign, the campaign mainly targets victims in Asia and North America, across multiple industries such as the technology, manufacturing, and finance sectors. A researcher from the University of California, Davis, reported that "attackers instruct their victims to scan QR codes with their mobile devices, in the hope that these portable devices do not possess the strict security measures found on corporate-issued devices," according to an article written by the researchers. 

This QR phishing campaign utilizes two techniques that have been discussed in previous articles: transparent phishing in conjunction with Cloudflare Turnstile" Those who operate phishing websites use Cloudflare Turnstile to ensure that their malicious websites are protected from static analysis tools so that they can hide their malicious payloads, prevent web filtering providers from blocking their domains, and maintain a clean reputation among the web community. 

This is known as an attack-in-the-middle phishing technique, which is more sophisticated than traditional phishing techniques. The attackers not only attempt to gain access to the victims' credentials but also attempt to log them into the legitimate service using those credentials, bypassing multi-factor authentication, so they can steal sensitive tokens or cookies which can be used to gain further unauthorized access to the system. 

This is a massive QR code phishing campaign, which abused Microsoft Sway, a cloud-based tool for creating presentations online, to create landing pages that scammed Microsoft 365 users into handing over their credentials in exchange for money. According to Netskope Threat Labs, these attacks were spotted in July 2024 after detecting an increase of 2,000-fold in attacks exploiting Microsoft Sway to host phishing pages that allegedly steal access credentials for Microsoft 365 accounts. 

Interestingly, this surge of activity dates back to the first half of the year when minimal activity was reported. So, it comes as no surprise that this campaign has been so widespread. Essentially, they were interested in targeting users in Asia and North America, concentrating primarily on the technology, manufacturing, and finance sectors, which were the most likely to present themselves to them. A free application, called Sway, is available in Microsoft 365 for anyone with a Microsoft account who has a Microsoft account. 

Attackers, however, utilize this open access as an opportunity to fool users by misrepresenting them as legitimate cloud applications, thus defrauding them of the money they are paid to use them. Furthermore, Sway is accessed once an individual logs into their Microsoft 365 account, adding a layer of legitimacy to the attack, since it is accessible once the victim has already logged into the account, thus increasing the chances of them opening malicious links. 

Netskope Threat Labs identified a new QR code phishing campaign in July 2024, marking a significant development in cyber threats. This campaign primarily targets victims in Asia and North America, affecting various sectors, including manufacturing, technology, and finance. Cybercriminals employ diverse sharing methods, such as email, links, and social media platforms like Twitter, to direct users to phishing pages hosted on the sway. cloud.Microsoft domain. 

Once on these pages, victims are prompted to scan QR codes that subsequently lead them to malicious websites. Microsoft Sway, a platform known for its versatility, has been exploited in the past for phishing activities. Notably, five years ago, the PerSwaysion phishing campaign leveraged Microsoft Sway to target Office 365 login credentials. This campaign, driven by a phishing kit offered through a malware-as-a-service (MaaS) operation, was uncovered by Group-IB security researchers.

The attacks deceived at least 156 high-ranking individuals within small and medium-sized financial services companies, law firms, and real estate groups. The compromised accounts included those of executives, presidents, and managing directors across the U.S., Canada, Germany, the U.K., the Netherlands, Hong Kong, and Singapore. This escalation in phishing tactics highlights the ongoing battle between cybercriminals and cybersecurity professionals, where each defensive measure is met with a corresponding offensive innovation. 

The need for a comprehensive approach to cybersecurity has never been more apparent, as malicious actors continue to exploit seemingly innocuous technologies for nefarious purposes. With the rising popularity of Unicode QR code phishing techniques, security experts emphasize the importance of enhancing detection capabilities to analyze not just images but also text-based codes and other unconventional formats used to deceive users and infiltrate systems. This sophisticated phishing method underscores the continuous vigilance required to safeguard digital environments against increasingly cunning cyber threats.

Nine Individuals Apprehended in Cavite for Alleged Voice Phishing Activities

 


PNP Anti-Cybercrime Group has again issued an advisory urging the public, particularly the elderly, to be vigilant about fraudulent phone calls made by falsely claiming to be bank employees, who attempt to trick them into giving them credit card information or other personal information. In Cavite province, nine suspected Vishing scammers who were allegedly targeting bank depositors to commit 'voice phishing fraud' (voice phishing) were nabbed on Wednesday night after being suspected in the scam. During the execution of warrants to search, seize, and analyze computer data (WSSECD), Brig. Gen. Ronnie Cariaga, chief of ACG, stated that the arrest was made in response to an arrest warrant for April Joy Espino, 34, for committing computer-related fraud as outlined in Republic Act No. 10175. 

In 2012, the Cybercrime Prevention Act of 2012 was passed which prohibited cybercrime. 9 individuals have been arrested by the Cyber Response Unit of the Philippine National Police Anti-Cybercrime Group (PNP-ACG) for violating Republic Act 10175, otherwise known as the Cybercrime Prevention Act of 2012, in violation of computer-related fraud. One of those arrested is a 34-year-old female. On July 24, around 9:10 at night, eight members of a police team were deployed to arrest the suspects, when the warrant was implemented to search, seize, and examine computer data from the office of alias Apol at the General Trias City office and her residence in Trece Martires City, Cavite, during the execution of a warrant. 

A raid was conducted following the notification of victims of computer-related fraud through phone phishing scams, which was initiating the raid. According to the Philippine National Police (PNP) Anti-Cybercrime Group (ACG), nine people in the Cavite region were arrested on Wednesday for participating in voice phishing or vishing scams using voice messages. A spokesperson for the Philippine National Police-ACG has confirmed that the arrest was the result of a two-year surveillance and case-building operation, which they conducted after receiving dozens of complaints from victims about the alleged abuse. 

Upon the initiation of the operation, a female named "APol" had been identified as the operational's primary target as a result of the previous investigation. The arrest was carried out following a series of measures aimed at seizing various items used by the scammers, such as registered SIM cards, ICT devices, bank documents, and scripts used for calling and contacting victims during the development of the scam. To collect evidence, the cyber police conducted an investigation, built the case, and conducted surveillance for almost eight months to gather all the necessary evidence for their investigation. 

The scam operation was also involving eight other individuals, which was discovered after the investigation was completed. They pretended to be bank employees on the phone and deceitfully obtained money from the victims' accounts by deceiving them into believing they were bank employees. SIM cards registered in the name of the individual were seized, and information and communication technology devices, bank documents, scripts, and information regarding several bank accounts and credit cards containing different personal information were also seized. 

It should be noted that BGen Ronnie Francis Cariaga, acting director of the PNP-ACG, accordingly stated, "The PNP-ACG is relying on the cooperation of financial institutions to assist in the investigation, strengthen the evidence, prepare for filing the cases, and expedite the process.". During this time frame, the PNP-ACG wishes to remind the public that if a voice phishing scheme has victimized them, they should inform the nearest ACG office so that appropriate police assistance can be provided and further illegal acts can be prevented. Moreover, the PNP ACG will also be in contact with the victims identified in the collected evidence so they can obtain assistance in filing a complaint," according to the officer.

CyberCartel: Latest Banking Trojan Threat in Chrome Extensions


In recent years, Latin America (LATAM) has become a favourite target for threat actors, especially those attacking financial organizations. The recent report by Security Intelligence titled "Unveiling the Latest Banking Threats in LATAM," explains the changing scenario of banking Trojans in the region. This blog covers important findings and results of the report, showing the sophisticated techniques used by threat actors and the immediate need for advanced cybersecurity measures.

Malicious Chrome Extension Rising

The top trend concerning the report is the rise in campaigns that involve Chrome extensions. The extensions, often masked as genuine tools, are made to hack into users' browsers and do various activities. After installing, threat actors can hack login credentials, take screenshots, and deploy malicious scripts into web pages. The report stresses that these extensions are specifically dangerous as they can evade traditional security checks and stay hidden for longer periods.

CyberCartel and its Role

The report also sheds light on the notorious activities of the cybercriminal group known as CyberCartel. The group has been associated with various high-profile attacks on financial organizations and government officials in LATAM. CyberCartel works via the Malware-as-a-Service (MaaS) model, offering other threat actors the tools and infrastructure needed to launch sophisticated attacks. This has allowed amateur cybercriminals to give access and contribute to the frequency and severity of attacks.

Attacking High-Profile Entities

CyberCartel's main targets are high-profile entities like government offices and financial institutions. These forms are lucrative targets because of the sensitive info they manage and the possible financial gain for threat actors. The report mentions various incidents where CyberCartel successfully hacked these organizations, causing reputational and financial damage. The group's potential to adjust and develop its techniques makes it a dangerous adversary for cybersecurity experts.

Advanced Tactics and Techniques

One sophisticated technique is using social engineering to fool users into installing malicious software. Cybercriminals make believable phishing emails and fake websites that impersonate genuine institutions. Hackers access their accounts and launch fraudulent transactions once users are tricked into giving their credentials.

Another sophisticated technique is using polymorphic malware, infamous for changing its code to escape detection by antivirus software. This kind of malware is difficult to address as it requires consistent updates to security systems to keep up with changing threat scenarios. 

FIN7 Hacking Group Sells Custom Tool "AvNeutralizer" to Evade Endpoint Protectiono

 

The notorious FIN7 hacking group has been identified selling a custom tool called "AvNeutralizer," designed to bypass detection by disabling enterprise endpoint protection software on corporate networks.

Believed to be a Russian hacking group active since 2013, FIN7 initially focused on financial fraud, hacking organizations, and stealing debit and credit card information. 

Subsequently, the group ventured into the ransomware domain and became linked with the DarkSide and BlackMatter ransomware platforms. The same threat actors are also suspected of being associated with the BlackCat ransomware operation, which recently conducted an exit scam after pilfering a ransom payment from UnitedHealth.

FIN7 is notorious for its sophisticated phishing and social engineering attacks, which they use to gain initial access to corporate networks. Their methods have included impersonating BestBuy to distribute malicious USB drives and developing custom malware and tools.

The group also created a fake security company called Bastion Secure to recruit pentesters and developers for ransomware attacks without the applicants realizing the true nature of their work.

FIN7 is tracked under various aliases, including Sangria Tempest, Carbon Spider, and the Carbanak Group.

According to a new report by SentinelOne, one of the custom tools developed by FIN7 is "AvNeutralizer" (also known as AuKill), which was first seen in attacks by the BlackBasta ransomware operation in 2022. At that time, BlackBasta was the only ransomware operation using the tool, leading researchers to believe there was a connection between the groups.

However, SentinelOne's historical data showed that the tool had been used in attacks by five other ransomware operations, indicating widespread distribution.

"Since early 2023, our telemetry data reveals numerous intrusions involving various versions of AvNeutralizer," explains SentinelOne researcher Antonio Cocomazzi. "About 10 of these are attributed to human-operated ransomware intrusions deploying well-known RaaS payloads, including AvosLocker, MedusaLocker, BlackCat, Trigona, and LockBit."

Further investigation revealed that threat actors using the aliases "goodsoft," "lefroggy," "killerAV," and "Stupor" had been selling an "AV Killer" on Russian-speaking hacking forums since 2022, with prices ranging from $4,000 to $15,000. A 2023 report from Sophos detailed how AvNeutralizer/AuKill exploited the legitimate SysInternals Process Explorer driver to terminate antivirus processes on a device.

The threat actors claimed that this tool could disable any antivirus/EDR software, including Windows Defender and products from Sophos, SentinelOne, Panda, Elastic, and Symantec.

SentinelOne recently found that FIN7 had updated AvNeutralizer to use the Windows ProcLaunchMon.sys driver to hang processes, rendering them non-functional. "AvNeutralizer employs a combination of drivers and operations to create a failure in certain implementations of protected processes, ultimately causing a denial of service condition," explains SentinelOne.

"It uses the TTD monitor driver ProcLaunchMon.sys, available on default system installations, in conjunction with updated versions of the process explorer driver version 17.02 (17d9200843fe0eb224644a61f0d1982fac54d844), which has been fortified for cross-process operations abuse and is not currently blocked by Microsoft's WDAC list."

SentinelOne discovered additional custom tools and malware used by FIN7 that are not known to be sold to other threat actors, including Powertrash (a PowerShell backdoor), Diceloader (a lightweight C2-controlled backdoor), Core Impact (a penetration testing toolkit), and an SSH-based backdoor.

Researchers warn that FIN7's continuous evolution and innovation in tools and techniques, coupled with selling its software, make it a significant threat to enterprises worldwide. "FIN7's continuous innovation, particularly in its sophisticated techniques for evading security measures, showcases its technical expertise," concludes SentinelOne researcher Antonio Cocomazzi. "The group's use of multiple pseudonyms and collaboration with other cybercriminal entities makes attribution more challenging and demonstrates its advanced operational strategies."

Navigating the Danger Zone: Discord’s Battle Against Malware

Navigating the Danger Zone: Discord’s Battle Against Malware

In a recent six-month investigation, cybersecurity firm Bitdefender discovered a disturbing trend: fraudsters are using Discord, a popular communication platform, to distribute malware and carry out phishing attacks.

The Rise of Malicious Links

The research, in which Bitdefender shows over 50,000 harmful links discovered on Discord, demonstrates the platform's rising vulnerability to cyber threats.

Types of Malicious Links

Malware Distribution: Cybercriminals use Discord to distribute malicious software (malware) to unsuspecting victims. These malware strains can range from spyware and ransomware to keyloggers and remote access Trojans. By enticing users to click on seemingly harmless links, attackers gain unauthorized access to their systems.

Phishing Attacks: Discord is also a playground for phishing campaigns. Scammers create fake login pages or impersonate legitimate services, tricking users into revealing sensitive information such as login credentials, credit card details, or personal data. Phishing links often masquerade as enticing offers or urgent notifications.

Geographical Impact

The study found that users in the United States are particularly targeted, accounting for 16.2% of the threats. However, other countries—such as France, Romania, the United Kingdom, and Germany—are also affected. Cybercriminals cast a wide net, exploiting language barriers and cultural differences to maximize their reach.

Common Scams

One prevalent scam involves promises of free Discord Nitro—a premium subscription service. Users receive messages claiming they’ve won a free upgrade to Discord Nitro, enticing them to click on a link. Unfortunately, these links lead to phishing sites or initiate malware downloads. Users must exercise caution and verify the legitimacy of such offers.

Protecting Yourself

As a Discord user, here are essential steps to safeguard against these threats:
  • Be Skeptical: Treat unsolicited messages with suspicion, especially if they promise freebies or urgent alerts. Verify the sender’s identity before clicking any links.
  • Hover Before You Click: Hover your mouse pointer over a link to preview the URL. If it looks suspicious or doesn’t match the expected destination, avoid clicking.
  • Enable Two-Factor Authentication (2FA): Strengthen your account security by enabling 2FA. This adds an extra layer of protection against unauthorized access.
  • Stay Informed: Keep an eye on security news and updates related to Discord. Awareness is your best defense.

Beware: Cybercriminals Exploit Cloud Storage for SMS Phishing Attacks

Beware: Cybercriminals Exploit Cloud Storage for SMS Phishing Attacks

Security researchers discovered several illicit campaigns that use cloud storage systems like Amazon S3, Google Cloud Storage, Backblaze B2, and IBM Cloud Object Storage. Unnamed threat actors are behind these attacks, which try to divert customers to malicious websites to steal their information via SMS messages.

Campaign details

The campaigns involve exploiting cloud storage platforms such as Amazon S3, Google Cloud Storage, Backblaze B2, and IBM Cloud Object Storage. Unnamed threat actors are behind these campaigns. Their primary goal is to redirect users to malicious websites using SMS messages.

Attack objectives

Bypassing Network Firewalls: First, they want to ensure that scam text messages reach mobile handsets without being detected by network firewalls. Second, they attempt to persuade end users that the communications or links they receive are legitimate. 

Building Trust: They aim to convince end users that the messages or links they receive are trustworthy. By using cloud storage systems to host static websites with embedded spam URLs, attackers can make their messages appear authentic while avoiding typical security safeguards.

Cloud storage services enable enterprises to store and manage files and host static websites by storing website components in storage buckets. Cybercriminals have used this capacity to inject spam URLs into static websites hosted on these platforms. 

Technique

They send URLs referring to these cloud storage sites by SMS, which frequently avoids firewall limitations due to the apparent authenticity of well-known cloud domains. Users who click on these links are unknowingly sent to dangerous websites.

Execution

For example, attackers utilized the Google Cloud Storage domain "storage.googleapis.com" to generate URLs that lead to spam sites. The static webpage housed in a Google Cloud bucket uses HTML meta-refresh techniques to route readers to fraud sites right away. This strategy enables fraudsters to lead customers to fraudulent websites that frequently replicate real offerings, such as gift card promotions, to obtain personal and financial information.

Enea has also detected similar approaches with other cloud storage platforms like Amazon Web (AWS) and IBM Cloud, in which URLs in SMS messages redirect to static websites hosting spam.

Defense recommendations

To protect against such risks, Enea advised monitoring traffic activity, checking URLs, and being cautious of unexpected communications including links.

Microsoft Introduces Passkey Authentication for Personal Microsoft Accounts

 

Microsoft has introduced a new feature allowing Windows users to log into their Microsoft consumer accounts using a passkey, eliminating the need for traditional passwords. This passkey authentication method supports various password-less options such as Windows Hello, FIDO2 security keys, biometrics like facial scans or fingerprints, and device PINs.

These "consumer accounts" are personal accounts used for accessing a range of Microsoft services including Windows, Office, Outlook, OneDrive, and Xbox Live. The announcement coincides with World Password Day, with Microsoft aiming to enhance security against phishing attacks and eventually phase out passwords entirely.

Previously available for logging into websites and applications, passkey support is now extended to Microsoft accounts, streamlining the login process without requiring a password.

Passkeys, unlike passwords, utilize a cryptographic key pair where the private key remains securely stored on the user's device. This method enhances security as it eliminates the risk of password interception or theft, and it simplifies the login experience, reducing reliance on password memorization and minimizing risky practices such as password recycling.

Moreover, passkeys offer compatibility across various devices and operating systems, ensuring a seamless authentication process. However, Microsoft's approach of syncing passkeys across devices raises some security concerns, potentially compromising account security if accessed by unauthorized individuals.

To enable passkey support for Microsoft accounts, users can create a passkey through a provided link and select from options like facial recognition, fingerprint, PIN, or security key. Supported platforms include Windows 10 and newer, macOS Ventura and newer, Safari 16 or newer, ChromeOS, Chrome, Microsoft Edge 109, iOS 16 and newer, and Android 9 and newer. Upon signing in, users can select their passkey from the list and proceed with the authentication process using the chosen method.

Modern Phishing Attacks: Insights from the Egress Phishing Threat Trends Report

 

Phishing attacks have long been a significant threat in the cybersecurity landscape, but as technology evolves, so do the tactics employed by cybercriminals. The latest insights from the Egress Phishing Threat Trends Report shed light on the sophistication and evolution of these attacks, offering valuable insights into the current threat landscape. 

One notable trend highlighted in the report is the proliferation of QR code payloads in phishing emails. While QR code payloads were relatively rare in previous years, they have seen a significant increase, accounting for 12.4% of attacks in 2023 and remaining at 10.8% in 2024. This shift underscores the adaptability of cybercriminals and their ability to leverage emerging technologies to perpetrate attacks. 

In addition to QR code payloads, social engineering tactics have also become increasingly prevalent in phishing attacks. These tactics, which involve manipulating individuals into divulging sensitive information, now represent 19% of phishing attacks. 

Moreover, phishing emails have become over three times longer since 2021, likely due to the use of generative AI to craft more convincing messages. Multi-channel attacks have also emerged as a prominent threat, with platforms like Microsoft Teams and Slack being utilized as the second step in these attacks. Microsoft Teams, in particular, has experienced a significant increase in usage, with a 104.4% rise in 2024 compared to the previous year. This trend highlights the importance of securing not just email communications but also other communication channels within organizations. 

Another concerning development is the use of deepfakes in phishing attacks. These AI-generated audio and video manipulations have become increasingly sophisticated and are being used to deceive victims into disclosing sensitive information. The report predicts that the use of deepfakes in cyberattacks will continue to rise in the coming years, posing a significant challenge for defenders. Despite advancements in email security, many phishing attacks still successfully bypass Secure Email Gateways (SEGs). Obfuscation techniques, such as hijacking legitimate hyperlinks and masking phishing URLs within image attachments, are commonly used to evade detection. This highlights the need for organizations to implement robust security measures beyond traditional email filtering solutions. 

Furthermore, the report identifies millennials as the top targets for phishing attacks, receiving 37.5% of phishing emails. Industries such as finance, legal, and healthcare are among the most targeted, with individuals in accounting and finance roles receiving the highest volume of phishing emails. As cybercriminals continue to innovate and adapt their tactics, organizations must remain vigilant and proactive in their approach to cybersecurity. 

This includes implementing comprehensive security awareness training programs, leveraging advanced threat detection technologies, and regularly updating security policies and procedures. 

The Egress Phishing Threat Trends Report provides valuable insights into the evolving nature of phishing attacks and underscores the importance of a multi-layered approach to cybersecurity in today's threat landscape. By staying informed and proactive, organizations can better protect themselves against the growing threat of phishing attacks.

Combatting iPhone Scams: Steps Towards Enhanced Security

 

The latest revelation in the realm of iPhone scams comes in the form of MFA (Multi-Factor Authentication) bombing. This sophisticated threat targeting Apple users underscores the need for heightened awareness and informed responses. Apple has promptly responded to the phishing attacks exploiting its password recovery system. The attackers, displaying adeptness, have bypassed CAPTCHA and rate limits, bombarding users with relentless MFA requests. Apple is now bolstering its defenses through backend solutions to thwart these cyber threats and ensure a safer user experience.

Contrary to common belief, changing passwords or email addresses may not offer complete protection against such attacks. This scam ingeniously targets phone numbers to evade security measures, highlighting the vulnerability of personal information readily available to scammers.

In the face of this escalating threat, vigilance is paramount. Users should approach unsolicited phone calls, especially those seeking sensitive information or one-time passwords, with caution. Regularly purging personal details from public databases can significantly reduce one's digital footprint, making it harder for scammers to exploit personal information.

The response to this threat extends beyond immediate countermeasures. There's a crucial need for Apple to enhance password recovery security measures, potentially integrating robust rate limiting into device lockdown modes. Such proactive steps, combined with a commitment to not share one-time passcodes, can strengthen defenses against current and future threats alike.

This scam is just one chapter in the ongoing saga of digital security challenges. By understanding its intricacies, users can better defend against similar threats. It's an ongoing learning process that requires vigilance and staying informed in the digital age.

Moving forward, safeguarding digital identities entails proactive defense measures. With informed decisions and a vigilant mindset, users can navigate the digital landscape securely and confidently.

Lazy Koala: New Cyber Threat Emerges in CIS Region

 

Cybersecurity researchers at Positive Technologies Expert Security Center (PT ESC) recently uncovered a new threat actor they've named Lazy Koala. Despite lacking sophistication, this group has managed to achieve significant results.

The report reveals that Lazy Koala is targeting enterprises primarily in Russia and six other Commonwealth of Independent States countries: Belarus, Kazakhstan, Uzbekistan, Kyrgyzstan, Tajikistan, and Armenia. Their victims belong to government agencies, financial institutions, and educational establishments. Their primary aim is to acquire login credentials for various services.

According to the researchers, nearly 900 accounts have been compromised so far. The purpose behind the stolen information remains unclear, but it's suspected that it may either be sold on the dark web or utilized in more severe subsequent attacks.

The modus operandi of Lazy Koala involves simple yet effective tactics. They employ convincing phishing attacks, often using native languages to lure victims into downloading and executing attachments. These attachments contain a basic password-stealing malware. The stolen files are then exfiltrated through Telegram bots, with the individual managing these bots being dubbed Koala, hence the group's name.

Denis Kuvshinov, Head of Threat Analysis at PT ESC, describes Lazy Koala's approach as "harder doesn't mean better." Despite their avoidance of complex tools and tactics, they manage to accomplish their objectives. Once the malware establishes itself on a device, it utilizes Telegram, a preferred tool among attackers, to exfiltrate stolen data.

PT ESC has notified the victims of these attacks, warning that the stolen information is likely to be sold on the dark web.

Sophisticated Phishing Tactics Unveiled in Targeted FCC Cybersecurity Breach

 


Several phishing campaigns targeting employees of cryptocurrency platforms such as Binance and Coinbase and the Federal Communications Commission (FCC) have been discovered, including one dubbed CryptoChameleon, which targets cryptocurrency platforms and employees. Based on an analysis from Lookout, the victims of this attack primarily use Apple iOS and Google Android devices with SSO solutions, such as Okta, Outlook, and Google, with their Apple and Google accounts with single sign-on. 

Several days ago, Lookout, a company focused on cloud security, announced that it had discovered an "advanced phishing kit" that targeted cryptocurrency exchanges, revealing techniques similar to what was expected. The phishing kit, which has been dubbed CryptoChameleon, can also be used to cheat the Federal Communications Commission (FCC) by using mobile devices. 

Most of the intended targets are crypto traders, single sign-on (SSO) services in the U.S., Binance staff, and Coinbase employees, with a small minority being Bitcoin traders and SSO service users. The kit seeks to trick victims into sharing sensitive information, including usernames, passwords, password reset URLs, and photo IDs, by sending carbon copies of SSO pages, phishing emails, SMS messages, and call-in scams via email, SMS, and voice mail, mainly aimed at US users.  

A suspicious new domain registration for the domain fcc-oktacom led researchers to discover a suspicious phishing kit. Cryptocurrency platforms and SSO services, including Coinbase, are most commonly targeted by this phishing kit, which is capable of impersonating a variety of company brands, with Coinbase being the most frequently targeted service.

Other websites were using the kit, and the majority of these websites used a subdomain of official-servercom as their C2 instead of their main domain. A recent blog post by Lookout states that the attack has been successful in phishing over a hundred people, many of whom remain active today. It is noteworthy that the C2 server URL, the client-side logic, and the style sheets were included in the kit. 

Most cybercriminals host their sites on RetnNet hosting. To prevent automated analysis tools from identifying the site, victims must first complete a captcha, known as hCaptcha, which provides the site with credibility. It appears CryptoChameleon is replicating the fashions used by Scattered Spider, specifically through its impersonation of Okta and the use of domain names previously assumed to be associated with the organization by Lookout. 

It is important to remember that the phishing kit has significantly different capabilities and C2 infrastructure than the phishing kit, even though the URL and spoofed pages look similar to what Scattered Spider might create. It is common for threat actors to copy one another's tactics and procedures when the tactic or procedure has been so publicized that it has become widely accepted. 

Furthermore, it remains unclear if this is the work of a single threat actor or a tool that is being used by many different groups at the same time. This is what has made the threat actors so successful in stealing high-quality data, according to Lookout, as high-quality phishing URLs, login pages that perfectly match the look and feel of legitimate websites, a sense of urgency, and consistent communication via SMS and voice calls have enabled them to steal data so efficiently. 

As soon as the attackers get access to the victim, they use their credentials to log in, and based on information that has been provided by the MFA service, they direct them to the appropriate page.  In addition to employees of the Federal Communications Commission (FCC), this phishing kit targets cryptocurrency users of Binance, Coinbase, and various other platforms that provide cryptocurrency services like Binance, Coinbase, Gemini, Kraken, ShakePay, Caleb & Brown, and Trezor. 

There have been over 100 successful phishing attacks on victims so far. As a result, automated analysis tools are not able to flag the sites because the fake login screen is displayed only after the victim completes a CAPTCHA test using hCaptcha, thus preventing them from being flagged. 

By mimicking a company's customer service team with the pretence that it is protecting a person's account after a purported hack, these pages can be distributed via unsolicited phone calls and text messages. As a result, the victim's phone number and the choice of six- or seven-digit code can be customized on the phishing page. 

Cryptocurrency platforms and Single Sign-On services are the most frequently targeted services by phishing kits that impersonate various company brands, with Coinbase being the most commonly targeted.  

Further, victims are also lured through phone calls, emails, and text messages, when phishing emails are disguised as legitimate messages from cryptocurrency platforms or the Federal Communications Commission (FCC) with malicious links, while SMS messages are disguised as legitimate notifications from cryptocurrency platforms or the FCC. 

Lookout customers have been protected against these phishing sites since the beginning of January 2024 due to the similarity of infrastructure and the similarity of previous attacks.

Phishing and Cloud Account Takeover Campaign Targeting Microsoft Azure Users

 


In a security breach, several Azure accounts were compromised, which resulted in the loss of important data from the users. A cyberattack was launched against senior executives in several major corporations and affected a variety of environments at the same time. 

In November 2023, Proofpoint, a cybersecurity company, discovered a harmful attack by combining cloud account takeover (ATO) with phishing techniques that would steal credentials from the victim. This attack used the same harmful campaign that was discovered by Proofpoint in November 2023. 

It is alleged that the hackers have used proxy services to get around geographical limitations and conceal their actual location, which would allow them to access both Office Home and Microsoft 365 applications at the same time. It is thought that the attackers used links in the papers that led to phishing websites to execute the attack. 

The anchor text for some of these links was “View document,” which made no sense to me as it did not imply anything about their real location. There was a well-planned attack that targeted both mid-level employees and senior employees, though a greater number of the former employees' accounts were hacked as a result. 

According to Proofpoint, CEOs, presidents, account managers, finance directors, vice presidents of operations, and sales directors were the most common targets. In this way, the attackers were able to gain access to information from all levels and domains of the organization. 

A cybercriminal will often use their own MFA (multifactor authentication) in these types of attacks to extend access to an account that has been compromised by the attackers. To prevent the user from regaining access, attackers add a second mobile number or set up an authentication app. To conceal their traces, attackers also destroy any evidence that suggests questionable behaviour. 

The most targeted positions were mid to senior-level, including sales directors, account managers, financial directors, operations vice presidents, and CEOs, among others. The attackers were able to gain access to a wide variety of organizational information as a result of this. 

As a result, the attackers have also instituted methods to maintain access, such as setting up a multi-factor authentication system and erasing all evidence of their intrusion. Data theft and financial fraud appear to be the primary goals of these attacks. 

It is not yet confirmed who the perpetrators are, although the evidence suggests that they will be located in Russia or Nigeria, and will use ISPs that are located in these countries.

Telegram Emerges as Hub for Cybercrime, Phishing Attacks as Cheap as $230

Cybersecurity experts raise alarms as Telegram becomes a hotspot for cybercrime, fueling the rise of phishing attacks. This trend facilitates mass assaults at a shockingly low cost, highlighting the "democratization" of cyber threats. In a recent development, cybersecurity researchers shed light on the democratization of the phishing landscape, courtesy of Telegram's burgeoning role in cybercrime activities. 

This messaging platform has swiftly transformed into a haven for threat actors, offering an efficient and cost-effective infrastructure for orchestrating large-scale phishing campaigns. Gone are the days when sophisticated cyber attacks required substantial resources. Now, malevolent actors can execute mass phishing endeavours for as little as $230, making cybercrime accessible to a wider pool of perpetrators. 

The affordability and accessibility of such tactics underscore the urgent need for heightened vigilance in the digital realm. Recent revelations regarding Telegram's involvement in cybercrime underscore a recurring issue with the platform's lenient content moderation policies. Experts emphasize that Telegram's history of lax moderation has fostered a breeding ground for various illicit activities, including the distribution of illegal content and cyber attacks. 

Criticism has been directed at Telegram in the past for its failure to effectively address issues such as misinformation, hate speech, and extremist content, highlighting concerns about user safety. With cyber threats evolving and the digital landscape growing more complex, the necessity for stringent moderation measures within platforms like Telegram becomes increasingly urgent. 

However, balancing user privacy with security poses a significant challenge, given the platform's encryption and privacy features. As discussions continue, Telegram and similar platforms must prioritize user safety and implement effective moderation strategies to mitigate risks effectively. 

"This messaging app has transformed into a bustling hub where seasoned cybercriminals and newcomers alike exchange illicit tools and insights creating a dark and well-oiled supply chain of tools and victims' data," Guardio Labs threat researchers Oleg Zaytsev and Nati Tal reported. 

Furthermore, they added that "free samples, tutorials, kits, even hackers-for-hire – everything needed to construct a complete end-to-end malicious campaign." The company also described Telegram as a "scammers paradise" and a "breeding ground for modern phishing operations." 

In April 2023, Kaspersky revealed that phishers are using Telegram to teach and advertise malicious bots. One such bot, Telekopye (aka Classiscam), helps create fake web pages, emails, and texts for large-scale phishing scams. Guardio warns that Telegram offers easy access to phishing tools, some even free, facilitating the creation of scam pages. 

These kits, along with compromised WordPress sites and backdoor mailers, enable scammers to send convincing emails from legitimate domains, bypassing spam filters. Researchers stress the dual responsibility of website owners to protect against exploitation for illicit activities. 

Telegram offers professionally crafted email templates ("letters") and bulk datasets ("leads") for targeted phishing campaigns. Leads are highly specific, and sourced from cybercrime forums or fake survey sites. Stolen credentials are monetized through the sale of "logs" to other criminal groups, yielding high returns. Social media accounts may sell for $1, while banking details can fetch hundreds. With minimal investment, anyone can launch a significant phishing operation.

Trezor Unveils Unauthorized User Data Access, Highlighting Emerging Phishing Threat

 

Hardware wallet manufacturer Trezor recently announced a security breach that may have exposed the personal data of approximately 66,000 users. The breach involved unauthorized access to a third-party support portal. Trezor, a renowned provider of cryptocurrency hardware wallets, took immediate action to address the situation and notify affected users.

The security breach was identified when Trezor detected unauthorized access to the third-party support portal. Users who had interacted with Trezor’s support team since December 2021 may have had their contact details compromised in the incident. While the breach did not compromise users' funds or their physical hardware wallets, concerns were raised about potential phishing attacks targeting affected individuals.

Phishing, a common cybercrime technique, involves attackers impersonating trusted entities to deceive individuals into revealing sensitive information. At least 41 users reported receiving direct email messages from the attacker, requesting information related to their recovery seeds. Additionally, eight users who had accounts on the same third-party vendor’s trial discussion platform had their contact details exposed.

Trezor responded swiftly to the security breach, ensuring that no recovery seed phrases were disclosed. The company promptly alerted users who received phishing emails within an hour of detecting the breach. While there hasn't been a significant increase in phishing activity, the exposure of email addresses could make affected users vulnerable to future attempts.

Trezor took proactive measures to mitigate the impact of the breach, emailing all 66,000 affected contacts to inform them of the incident and associated risks. The company reassured users that their hardware wallets remained secure, emphasizing that the breach did not compromise the security of their cryptocurrency holdings.

Despite previous security incidents, including phishing attempts and scams involving counterfeit hardware wallets, Trezor has consistently demonstrated a commitment to enhancing user security. The company remains vigilant in safeguarding the assets and information of its users, with hardware wallet security being a top priority.

In response to the recent incident, Trezor advised users to exercise caution and adhere to best practices for protection against potential phishing attacks. This includes being skeptical of unsolicited communications, avoiding clicking on suspicious links or downloading attachments from unknown sources, and refraining from sharing sensitive information such as recovery seed phrases or private keys.

Users are encouraged to monitor their accounts and financial transactions regularly for signs of unauthorized activity. Additionally, enabling two-factor authentication (2FA) whenever possible provides an additional layer of security against unauthorized access.