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Showing posts with label Malware Attack. Show all posts
Malwares
Cyber Attacks Cyber Threat Intelligence DLL E-commerce Websites Compromised Malicious Software Malware Attack Malwares

LegionLoader Malware Resurfaces with Evasive Infection Tactics

 

Researchers at TEHTRIS Threat Intelligence have uncovered a new wave of LegionLoader, a malware downloader also known as Satacom, CurlyGate, and RobotDropper. This sophisticated threat has been rapidly gaining momentum, with over 2,000 samples identified in recent weeks. 

According to TEHTRIS, the ongoing campaign began on December 19, 2024, and has since spread globally, with Brazil emerging as the most affected country, accounting for around 10% of reported cases. LegionLoader primarily infects systems through drive-by downloads, where users unknowingly download malicious software from compromised websites. 

Cybercriminals behind this campaign frequently leverage illegal download platforms and unsecured web pages, which are quickly taken down after redirecting victims to Mega cloud storage links containing a single ZIP file. These ZIP archives house a 7-Zip password-protected file, making it difficult for security tools to scan the contents. 

To further deceive users, a separate image file displays the password required for extraction, enticing them to execute the malware. Once extracted, LegionLoader is deployed as an MSI (Microsoft Installer) file, requiring user interaction to execute. TEHTRIS researchers found that antivirus detection rates for these MSI files range between 3 and 9 out of 60, indicating the malware’s ability to evade traditional security measures. 

The MSI file also includes two key anti-sandbox mechanisms: a fake CAPTCHA prompt to prevent automated analysis and a virtual environment detection feature using Advanced Installer. These obstacles make it challenging for security researchers to analyze the malware in controlled environments. Upon execution, LegionLoader extracts multiple files into the system’s %APPDATA% directory, including clean DLLs, executables, and a password-protected archive containing the primary payload. 

The malware then uses UnRar.exe to extract a DLL file, which is sideloaded using obsffmpegmux.exe to execute the next stage of the attack. Notably, the obs.dll payload is crafted to evade detection by security tools. TEHTRIS analysis found that most of its exports are empty, while the few containing code appear intentionally misleading, likely to slow down forensic investigation. 

Further examination using BinDiff revealed that while different obs.dll samples were structurally identical, variations existed in their second-stage payloads. During dynamic analysis, researchers observed shellcode decryption, leading to the execution of another malicious component. This secondary stage communicates with hardcoded command-and-control (C2) servers, though all identified C2 domains were inactive at the time of analysis, preventing further insights into the malware’s final objective. 

If all infection stages are completed, LegionLoader attempts to execute a final payload using rundll32.exe. The malware downloads an additional file, places it in a randomly named directory under %TMP%, and launches it as svchost.exe. Given the use of rundll32.exe, researchers suspect the final payload is another malicious DLL, though its specific function remains unknown.

To protect against LegionLoader, security experts advise avoiding software downloads from unverified sources and implementing behavior-based detection strategies. These proactive measures can help mitigate the risks posed by evolving malware threats.
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Malware Attack
Chrome Cyber Attacks Cyble Cyble research data security Data Theft Google Chrome security Malware Attack

Sophisticated Malware Bypasses Chrome App-Bound Encryption Using Dual Injection

 

Researchers at Cyble have identified a highly advanced malware attack that successfully bypasses Google Chrome’s App-Bound Encryption. This security feature was designed to prevent infostealer malware from accessing user data, particularly cookies. 

However, the newly discovered malware employs dual injection techniques to circumvent these defenses, allowing cybercriminals to extract sensitive credentials. The attack begins with a deceptive file distribution method. The malware is embedded within a ZIP file disguised as a PDF document. 

When opened, it executes a malicious LNK shortcut file that creates a scheduled task, running every 15 minutes. Another component of the attack is an XML project file, which is designed to appear as a PNG image, further tricking users into engaging with the malicious content.  

To execute its payload, the malware exploits MSBuild.exe, a legitimate Microsoft development tool. This enables it to run directly in system memory without creating detectable files on the disk, making it much harder for traditional security solutions to identify and stop the attack. The use of fileless execution techniques ensures that the malware operates stealthily while maintaining persistence on an infected system. 

A key aspect of this attack is its dual injection approach. The malware employs both Process Injection and Reflective DLL Injection to execute malicious code within legitimate system processes. This method allows it to blend in with normal activity while avoiding detection. By targeting Chrome’s security framework, the malware can extract encrypted login data, cookies, and other sensitive browser-stored information. 

The malware also leverages the Telegram Web API for command and control communications. This connection enables threat actors to issue remote commands, modify bot configurations, and control infected systems with minimal interference. The dynamic bot ID switching feature adds an additional layer of stealth, ensuring continued access even if parts of the attack infrastructure are disrupted. Cyble researchers noted that the malware appears to be specifically targeting organizations in Vietnam, particularly those in the telemarketing and sales industries.

However, the method it uses could be adapted for broader campaigns, posing a risk to businesses and individuals globally. The initial infection method remains unclear, but it likely involves phishing emails or malicious downloads.  

To mitigate the risk of such attacks, Cyble recommends implementing strict email attachment filtering, restricting the execution of unverified files, and enhancing user awareness about phishing threats. 

Organizations should also deploy advanced security solutions capable of detecting fileless malware attacks. The research highlights the evolving nature of cyber threats and the need for proactive cybersecurity measures to safeguard sensitive data.
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Malware Attack
Cyber Attacks fake ads fake websites Google Google Ads Infostealer Malware Mallicious URLs Malware Attack

Cybercriminals Use Google Ads and URL Cloaking to Spread Malware

 

Cybercriminals are increasingly using Google ads and sophisticated cloaking techniques to push malware onto unsuspecting users. The latest example involves a fake Homebrew website that tricked users into downloading an infostealer designed to steal sensitive data, including login credentials and banking details. Security researcher Ryan Chenkie first noticed the malicious Google ad, which displayed the correct Homebrew URL, “brew.sh,” making it appear legitimate. 

However, once users clicked on the ad, they were redirected to a fraudulent clone hosted at “brewe.sh.” The deception was so convincing that even experienced users might not have spotted the trick before engaging with the site. The technique used in this campaign, known as URL cloaking, allows cybercriminals to manipulate how links appear in ads. According to Google, these attackers create thousands of accounts and use advanced text manipulation to bypass detection by both automated systems and human reviewers. This makes it difficult to catch fraudulent ads before they reach users. 

While Google has since removed the ad and is ramping up its security efforts, the issue highlights ongoing vulnerabilities in online advertising. The malware behind this attack, identified by security researcher JAMESWT as AmosStealer (also known as Atomic), is specifically designed for macOS systems. Developed in Swift, it is capable of running on both Intel and Apple Silicon devices. AmosStealer is a subscription-based malware service, sold to cybercriminals for $1,000 per month. 

Once installed, it can extract browser history, login credentials, bank account details, cryptocurrency wallet information, and other sensitive data. What makes this attack particularly alarming is its target audience. Homebrew is a package manager used primarily by macOS and Linux users, who are generally more tech-savvy than the average internet user. This suggests that cybercriminals are refining their tactics to deceive even experienced users. By leveraging Google’s ad platform to lend credibility to their fake sites, these attackers can reach a broader audience and increase their success rate.  

To protect against such malware campaigns, users should take extra precautions. Checking an ad’s displayed URL is no longer sufficient — verifying the website address after the page loads is crucial. Even a minor change in spelling, such as replacing a single letter, can indicate a fraudulent site. Another effective defense is avoiding Google ads altogether. Legitimate websites always appear in organic search results below the ads, so skipping the top links can help users avoid potential scams. 

Instead of clicking on ads, users should manually search for the company or product name to locate the official website. For those looking to minimize risks from malicious ads, alternative search engines like DuckDuckGo or Qwant offer more privacy-focused browsing experiences with stricter ad filtering. As cybercriminals continue to evolve their tactics, adopting safer browsing habits and remaining vigilant online is essential to avoiding security threats.
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Monero Miner
Credential stealing Cyber Attacks Cybersecurity Researchers data security Data Theft Hacker attack Hackers Malware Attack Monero Monero Miner

Hackers Infect Security Researchers with Malware to Steal WordPress Credentials

 

For the past year, a cyberattack campaign has been targeting security professionals, including red teamers, penetration testers, and researchers, infecting their systems with malware. The malicious software has been used to steal WordPress credentials and sensitive data while also installing cryptominers on compromised devices. Over 390,000 WordPress accounts have been affected, and multiple systems have been found mining Monero, a cryptocurrency favored for its anonymity.  

Researchers from Datadog Security Labs uncovered the attack in the NPM package repository and on GitHub. Checkmarx, another cybersecurity organization, also recently raised concerns about the same threat. The malicious package masqueraded as an XML-RPC implementation, first appearing in October 2023. Initially functional and legitimate, the package was updated 16 times before being identified as harmful in November 2024. The attackers adopted a calculated approach to gain trust within the developer community. Early versions of the package performed as advertised, but later updates introduced malicious functionality. 

Once installed, the malware activated every 12 hours, collecting sensitive information such as SSH keys and command-line histories. The stolen data was then exfiltrated through file-sharing platforms like Dropbox or File.io. This campaign’s impact extended further as unsuspecting security professionals integrated the compromised package into their own tools and projects. This turned the operation into a large-scale supply chain attack, increasing its reach and potential damage. The investigation revealed 68 systems actively mining Monero, likely using XMRig, a cryptomining tool commonly employed by cybercriminals. 

Monero’s untraceable nature makes it particularly appealing to threat actors. Despite extensive analysis, the identity of those behind the campaign remains unknown. The researchers assigned the group the identifier MUT-1224, an acronym for “Mysterious Unattributed Threat.” The incident highlights the persistent vulnerabilities in open-source software platforms, such as NPM and GitHub, which continue to be exploited for cyberattacks. Developers are urged to exercise caution when incorporating third-party software into their projects, thoroughly vetting code repositories and reviewing package histories to minimize risks. This malware campaign also underscores the growing sophistication of cybercriminals, who are increasingly leveraging supply chain vulnerabilities to expand their reach. 

By infiltrating widely used platforms and tools, attackers can affect a vast number of users and systems. To mitigate these threats, organizations must prioritize robust security practices, including regular monitoring of open-source dependencies, deploying tools for detecting malicious code, and educating teams on the risks associated with third-party software. This proactive approach is essential for safeguarding sensitive data and maintaining system integrity in an era of increasingly complex cyber threats.
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Shopping Scam
2FA Cyber Security Dark Web dark web breaches Fake Website Hacker attack Malware Attack Online Shopping phishing Shopping Scam

The Dark Web’s Role in Phishing and 2FA Security Breaches

 


Black Friday and Cyber Monday may have passed, but the dangers of online scams and cyberattacks persist year-round. Cybercriminals continue to exploit digital shoppers, leveraging sophisticated tools such as phishing kits, fake websites, and cookie grabbers that bypass two-factor authentication (2FA). These tools, widely available on dark web marketplaces, turn online shopping into a risky endeavour, particularly during the peak holiday season.

Cybercriminal Tools: A Growing Threat

Dark web marketplaces operate like legitimate businesses, offering everything from free phishing kits to subscription-based malware services. According to NordStellar threat intelligence:

  • Phishing kits: Often free or low-cost, enable hackers to replicate authentic websites.
  • Fake website templates: Start at $50, tricking users into sharing personal information.
  • Malware subscriptions: Priced at $150 per month, provide hackers with advanced tools.
  • Cookie grabber pages: Sell for $400 or more, enabling access to user accounts by bypassing login credentials and 2FA.

These illicit tools are increasingly accessible, with some even offered at discounted rates during the holiday season. The result is an alarming rise in phishing scams targeting fake shopping sites, with 84% of victims interacting with these scams and nearly half losing money.

The Role of Stolen Cookies in Cybercrime

Session cookies, particularly authentication cookies, are a prized asset for hackers. NordStellar reports over 54 billion stolen cookies available on the dark web, including:

  • 154 million authentication cookies, 23.5 million of which remain active.
  • 37 million login cookies, with 6.6 million still usable.
  • 30 million session cookies capable of bypassing 2FA.

These cookies allow attackers to impersonate legitimate users, gaining unauthorized access to accounts without requiring passwords or verification codes. This capability makes cookie-grabber pages one of the most valuable tools in the hacker’s arsenal.

Protecting Yourself from Cyber Threats

Google has introduced measures like passkeys to combat these threats, offering a more secure alternative to traditional 2FA methods. A Google spokesperson emphasized that passkeys reduce phishing risks and strengthen security against social engineering attacks. Consumers can take additional steps to safeguard their online accounts:

  • Scrutinize links and websites to avoid phishing scams.
  • Switch to advanced authentication methods such as passkeys where available.
  • Stay informed about emerging cyber threats and adopt proactive security practices.

By remaining vigilant and embracing stronger authentication technologies, shoppers can minimize the risks posed by cybercriminals and their evolving arsenal of dark web tools.

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UEFI Bootkit
Bookitty Data theft extortion Linux Systems malware Malware Attack News trending news UEFI Bootkit

Bootkitty: The Game-Changing Malware Targeting Linux Systems

 

This malware, named Bootkitty, introduces a new method of attacking Linux, which has traditionally been considered safer from such stealthy threats compared to Windows. Bootkits are highly dangerous because they infect a computer’s boot process, loading before the operating system starts. 

This allows them to take deep control of a system while avoiding detection by traditional security tools.   

Bootkitty specifically targets certain versions of Ubuntu Linux by bypassing critical security checks during system boot.   

How Bootkitty Works  


ESET discovered Bootkitty in November 2024 when a suspicious file, bootkit.efi, was uploaded to VirusTotal. The malware uses advanced techniques to bypass kernel signature verification and inject malicious components during the system boot process.   

It relies on a self-signed certificate, meaning it won’t function on systems with Secure Boot enabled.   The malware hooks into UEFI security protocols and GRUB bootloader functions, disabling key security checks and loading malicious modules into the Linux kernel.  Bootkitty also forces a malicious library to load into system processes upon startup.   

However, the malware is not without flaws.  It only works on specific GRUB and kernel versions, which limits its effectiveness.  It can cause system crashes due to compatibility issues.   

During their investigation, researchers also found another suspicious file, BCDropper, likely associated with Bootkitty. BCDropper installs a rootkit named BCObserver, which provides stealthy control by hiding files, processes, and open ports on the infected system.   

Growing Threat to Linux   


Although Bootkitty is not yet fully developed or actively deployed in real-world attacks, its discovery is concerning. It signals that cybercriminals are increasingly targeting Linux as more businesses rely on it for critical operations.  

To help organizations defend against Bootkitty, ESET has published indicators of compromise (IoCs) on GitHub.   

Recommendations for Protection   


  • Enable Secure Boot: Since Bootkitty cannot operate with Secure Boot enabled, this is a crucial defense. 
  • Update Security Tools: Keeping antivirus and other security software up to date can help detect and block new threats.  

This discovery underscores the growing sophistication of Linux-targeted malware and the need for robust security practices to safeguard critical systems.
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Ransomwares
Akira Ransomware Cyber Security Cyber Threats LockBit Malware Attack malware prevention Malwares RansomHub Ransomwares

2024’s Most Dangerous Malware: A Wake-Up Call for Cybersecurity

 

OpenText, a leader in cybersecurity insights, has released its eagerly awaited “Nastiest Malware of 2024” list, highlighting some of the most destructive and adaptive cyber threats of the year. The list illustrates how ransomware and other malicious software continue to evolve, particularly regarding their impact on critical infrastructure. As cybercriminals refine their tactics, the need to strengthen cybersecurity measures has become increasingly urgent. Organizations around the globe are projected to boost their cybersecurity spending by 14.3% in 2024, raising total investments to over $215 billion, which reflects the magnitude of the challenges posed by these threats. 

LockBit claimed the title of the most dangerous malware of the year. This ransomware-as-a-service (RaaS) entity has demonstrated its ability to evade law enforcement efforts, including those from the FBI. Its ongoing attacks on critical infrastructure showcase its resilience and technical prowess. According to the FBI, LockBit was responsible for 175 reported attacks on essential systems in 2023 alone. The group’s bold ambition to target one million businesses emphasizes its threat level and solidifies its position in the ransomware landscape. 

Akira, a relatively new player, has rapidly gained infamy for its aggressive tactics. This ransomware has been particularly active in industries such as healthcare, manufacturing, and finance, using advanced encryption methods to cause significant disruption. Its retro-inspired branding contrasts sharply with its destructive potential, making it a popular choice among cybercriminal affiliates. 

Meanwhile, RansomHub, which may have connections to the infamous Black Cat (ALPHV) group, has made headlines with its high-profile attacks, including a daring strike on Planned Parenthood that compromised sensitive patient data. 

Other significant threats include Dark Angels, recognized for its precision-targeted attacks on Fortune 50 companies, and Play Ransomware, which takes advantage of vulnerabilities in FortiOS systems and RDP servers. Redline Stealer, while not technically ransomware, this type of threat significantly endangers organizations by focusing on stealing credentials and sensitive information. Each of these threats illustrates how cybercriminals are continually pushing the limits, employing advanced tactics to stay ahead of defenses. 

Muhi Majzoub, OpenText’s EVP and Chief Product Officer, notes that the increase in ransomware targeting critical infrastructure highlights the growing risks to national security and public safety. At the same time, the heightened emphasis on cybersecurity investments is a positive indication that organizations are recognizing these threats. However, the ability of ransomware groups to adapt remains a significant worry, as these criminals continue to leverage new technologies, including artificial intelligence, to create more sophisticated attacks. 

The findings from this year reveal a harsh truth: while progress in cybersecurity is being made, the rapid pace of innovation in malware development poses an ongoing challenge. As companies enhance their vigilance and dedicate more resources to protect vital systems, the battle against cyber threats is far from finished. The changing nature of these attacks requires ongoing adaptation, collaboration, and investment to protect the essential services that support modern society.
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TLS
C2 Chinese Hackers Chinese Threat Actors Cyber Attacks Malware Attack NCSC Sophos TLS

NCSC Unveils “Pigmy Goat” Malware Targeting Sophos Firewalls in Advanced Chinese Cyberattack

 

The National Cyber Security Centre (NCSC) recently disclosed the presence of a Linux malware, “Pigmy Goat,” specifically designed to breach Sophos XG firewall devices. This malware, allegedly developed by Chinese cyber actors, represents a significant evolution in network infiltration tactics due to its complexity and advanced evasion methods. 

This revelation follows Sophos’ recent “Pacific Rim” reports, which detail a five-year campaign involving Chinese threat actors targeting network devices at an unprecedented scale. Among the identified tools, “Pigmy Goat” stands out as a rootkit crafted to resemble legitimate Sophos product files, making it challenging to detect. This strategy is known to use stealth by masking its identity within commonly named system files to evade basic detection protocols. “Pigmy Goat” enables threat actors to establish persistent, unauthorized access to the target’s network. Using the LD_PRELOAD environment variable, it embeds itself in the SSH daemon (sshd), allowing it to intercept and alter incoming connections. 

The malware seeks specific sequences called “magic bytes” to identify backdoor sessions, which it redirects through a Unix socket, thereby concealing its presence from standard security monitoring. Once a connection is established, it communicates with command and control (C2) servers over TLS. The malware cleverly mimics Fortinet’s FortiGate certificate, blending into networks where Fortinet devices are prevalent, to avoid suspicion. This backdoor offers threat actors multiple capabilities to monitor, control, and manipulate the network environment. Through commands from the C2, attackers can remotely open shell access, track network activity, adjust scheduled tasks, or even set up a SOCKS5 proxy, which helps them remain undetected while maintaining control over the network. These actions could allow unauthorized data access or further exploitation, posing significant threats to organizational cybersecurity. 

The NCSC report aligns “Pigmy Goat” with tactics used in “Castletap” malware, which cybersecurity firm Mandiant has linked to Chinese nation-state actors. The report’s insights reinforce concerns over the evolving sophistication in state-sponsored cyber tools aimed at infiltrating critical network infrastructure worldwide. Detection and prevention of “Pigmy Goat” are crucial to mitigating its impact. The NCSC report provides tools for identifying infection, including file hashes, YARA rules, and Snort rules, which can detect specific sequences and fake SSH handshakes associated with the malware. 

Additionally, monitoring for unusual files and behaviours, such as encrypted payloads in ICMP packets or the use of ‘LD_PRELOAD’ within the sshd process, can be effective. These insights empower network defenders to recognize early signs of compromise and respond swiftly, reinforcing defences against this sophisticated threat.
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