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Ransomware
ALPHV Blackcat Ransomware Black Basta Cyber Security CyberCrime CyberThreat Global Security Ransomware

Persistent Increase in Ransomware Attacks Raises Global Security Concerns

 


It was concluded that in the first five weeks of 2025, there was a significant increase in ransomware attacks targeted at the United States, marking a nearly 150% increase compared to the first five weeks of 2024. Based on a series of high-profile incidents in which certain organisations decided to pay ransoms to avoid detection, cybercriminals have inadvertently increased their interest in the U.S. and made the country a more attractive target for cybercriminals. 

Consequently, this factor is largely responsible for the increase in ransomware activity in the last few months, as successful ransom payments have likely incentivized other ransomware attacks. In the past year, despite fluctuations in the most active ransomware groups and specific timeframes, the frequency of ransomware incidents in the United States has substantially increased. There has been a significant rise in ransomware incidents since the fall of 2024, and a steady increase has continued into the new year. Security firm NCC Group reports 590 new ransomware victims in January, a 3% increase from the previous month, which already set a record for that period. 

The threat intelligence company Cyble has also identified 518 new victims in January, and this number has increased to 599 within the past 27 days. Approximately two-thirds of the attacks were conducted against organizations located in the United States. Additionally, other cybersecurity monitoring organizations have noted a rise in ransomware incidents over the past two months. The difference in victim counts between cybersecurity firms may be attributed to the difference in methodologies, in particular whether victims of previously compromised cybersecurity systems who have just been revealed should be classified as new victims. 

However, despite these discrepancies, industry experts all agree that ransomware activity has increased in recent months. There are several notable ransomware groups responsible for driving this increase, among which RansomHub, Play, and Akira stand out as prominent threat actors. As a result of their increased activity, organizations across the globe are facing increasing cybersecurity challenges as a result of their increased activities. There is still a persistent threat of ransomware, however, individual ransomware groups emerge and dissipate frequently. 

Some of these groups, such as Black Basta, are now in decline or are nearing obsolescence, while others are suffering disruption due to law enforcement intervention, as LockBit appears to be the case. Groups that suffer from internal conflict, often driven by financial disputes, are prone to collapse. For instance, Alphv, also known as BlackCat, was notorious for conducting an exit scam 12 months ago, retaining the entire $22 million ransom paid by UnitedHealth Group following the Change Healthcare hack, rather than sharing it with the affiliate that carried out the scam. 

Although some ransomware groups have disbanded at the end of last year, the landscape of ransomware continues to be highly dynamic, with new actors continuously emerging. In many instances, these "new" actors are not merely rebranded entities, but individuals already entrenched in the cybercrime ecosystem himself. A significant percentage of these attacks are the result of affiliates, threat actors who work with several ransomware operations. Regardless of which specific group name they operate under, affiliations are responsible for a significant portion of these attacks, according to cybersecurity firm BlackFog. In 2024, 48 new ransomware groups surfaced. 

There are four victims mentioned publicly on RunSomeWare's data leak sites, whereas Linkc only has one victim posted on its data leak site, as reported by threat intelligence firm Cyble. It is unclear how long these emerging groups will survive in this business. In December 2024, Anubis, a Russian-speaking ransomware group that first became active, appears to be the work of former ransomware affiliates, as indicated by the sophistication of its tactics. 

Kela reports that Anubis maintains a presence on cybercrime forums like RAMP and XSS, which reinforces its network within the cybercriminal underground by ensuring it maintains its visibility on these forums. In addition to offering a range of illicit services, this group also operates a traditional ransomware-as-a-service model, where affiliates are rewarded with 80% of the ransom money collected from victims they infect. 

As well as targeting Windows, Linux, network-attached storage (NAS), and ESXi environments, Anubis' ransomware can also be used to spread the virus. In addition, the group maintains a data leak blog based on Tor, where so far only a few people have been listed. The Anubis ransomware operation offers two distinct services in addition to conventional ransomware. In the first case, participants receive 60% of the revenue extorted from victims using stolen data, based on the data-ransom-as-a-service model. If the stolen data are unpublished, have been obtained within the past six months, and considered valuable enough for public exposure, they are eligible for this program. By releasing a press release and notifying local data privacy regulators about the breach, Anubis claims to amplify pressure on victims. 

It is the second offering of Anubis that targets initial access brokers, who facilitate cyber intrusions by selling credentials to compromised networks to gain access to them. Under Anubis' model, the IABs become eligible for 50% of all ransoms demanded by victims whose credentials they have supplied. A specific set of eligibility criteria applies, including being a citizen of the United States, Canada, Europe, or Australia, not having been targeted by another ransomware group within the last 12 months, and not being employed by the government, the educational system, or any non-profit organization. 

Ransomware groups are long collaborating with initial access brokers and have often paid a premium for exclusive access to compromised networks, but the healthcare industry remains a viable target. Cybercrime brokers are increasingly becoming increasingly reliant on each other, and this indicates that their role is growing within the cybercrime economy. According to a recent report by CrowdStrike, access broker activity is expected to grow by almost 50% in 2024, as cybercriminals continue to look for ways of infiltrating high-value targets in an increasingly swift and stealthy manner. 

Despite the persistence of ransomware, it is important to remember that individual ransomware groups emerge and dissipate regularly. Several groups, such as Black Basta, appear to have declined over the years or are on the verge of obsolescence, whereas others, such as LockBit, seem to be facing disruptions because of law enforcement interventions. As it seems with LockBit, these groups collapse in the face of internal conflicts, often caused by financial disagreements. Alphv, also known as BlackCat, is one example that exemplifies an exit scam that was carried out 12 months ago. 

According to reports, Alphv kept the entire $22 million ransom paid by UnitedHealth Group to resolve the Change Healthcare breach, instead of sharing it with the affiliate that perpetrated the attack. It is important to note that while some groups have disbanded, the ransomware landscape still remains a highly dynamic place, with new actors constantly emerging on the scene. The so-called "new" groups are usually nothing more than rebranded entities that already have a place in the cybercrime ecosystem. 

These so-called "new" groups include individuals already well versed in the criminality ecosystem. Affiliates - threats actors who collaborate with multiple ransomware operations - are responsible for a significant portion of these attacks, regardless of who they use as their operating name. In 2024, 48 new ransomware groups were discovered, according to cybersecurity firm BlackFog. RunSomeWares claims to have identified four victims on their data leak site which has been compiled by Linkc, while only one victim has been identified by RunSomeWares, according to threat intelligence firm Cyble. However, the long term viability of these emerging groups is uncertain. 

As indicated by the sophistication of the attacks of Anubis, a Russian-speaking ransomware group that became active by December 2024, its tactics were likely developed by former ransomware affiliates. Anubis maintained a visible presence, according to threat intelligence firm Kela, on cybercrime forums such as RAMP and XSS, thereby enhancing its connections within the black market for cybercrime. The group offers a range of illicit services to its customers. There are two main models of ransomware-as-a-service (RaaS) that the organization uses, in which affiliates receive 80% of any ransom payments that are collected from victims that are infected by the group. 

The ransomware of Anubis is capable of attacking Windows, Linux, network-attached storage (NAS), and ESXi environments, as well. Furthermore, the group maintains a Tor-based blog that leaks data, but so far, it has only listed a few victims that have been affected. It advertises two distinctive services in addition to conventional ransomware. The first is a model called data-ransom-as-a-service (DraaS), in which participants receive 60% of all the revenue extorted from victims by using stolen data. 

To qualify, the stolen data must not have been published, must have been obtained within the last six months, and should be considered valuable enough to be published. In its second offering, Anubis claims that publicizing the data breach and notifying local data privacy regulators will increase pressure on victims. The offering targets initial access brokers (IABs) who facilitate cyber intrusions by selling access credentials to compromised networks. Under Anubis' model, it will award half of the ransom obtained from victims who provide their access credentials to the IAB, which will be used to secure a ransom. 

It is important to note, however, that there are some eligibility requirements for this program. The victim must reside in the United States, Canada, Europe, or Australia, and not have been targeted by another ransomware group in the past 12 months. The victim must also not be a government or educational employee. It is, however, still very possible to target the healthcare industry. 

A long history of ransomware groups collaborating with initial access brokers has shown that these brokers often pay a premium for exclusive access to compromised networks. Their increasing dependence on these brokers indicates that their role within the cybercrime economy is growing. According to a recent report published by CrowdStrike, access broker activity increased by nearly 50% in 2024 compared to the previous year, as cybercriminals continued to search for faster and stealthier methods of infiltrating high-value targets as they continued to grow.
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BackLock Black Basta Cyberhacekrs Cybersecurity CyberThreat malware Ransomware ransomware-as-a-service (RaaS) VBS VPN

Black Basta's Slowdown Coincides with BlackLock's Growth

 


The activity level of ransomware groups with "black" in their name has varied greatly over the early months of the new year. Despite the significant increase in attacks caused by the BlackLock ransomware group, the long-established Black Basta ransomware group appears to be about to break up, although it is still posing a persistent cybersecurity threat even so. 

Even though BlackLock was first identified as a ransomware-as-a-service operation in March 2024, the cyber-criminals have been actively targeting multiple platforms in the past few months, including Windows, VMware ESXi, and Linux systems, according to a report by cybersecurity firm ReliaQuest. According to a report by ReliaQuest, BlackLock, also known as El Dorado or Eldorado, utilizes a double-extortion strategy, which involves exfiltration of sensitive data from a victim before the encryption of their computer systems. 

With this approach, threat actors can demand a ransom in addition to the decryption of compromised files to obtain a promise that they will not reveal the stolen data once they have decrypted it. As reported by ReliaQuest, BlackLock has also reported a substantial increase in its activities over the last three months, with its data leak site registering fourteen times as many victims as it did in the previous three months of 2024. In light of this sharp increase, it is evident that BlackLock is becoming a greater threat to organizations, as it continues to expand its operations and refine its extortion tactics, which are becoming increasingly sophisticated. 

To enhance an enterprise's cybersecurity posture, it is crucial to have a thorough understanding of the Black Basta attack methodologies. The Black Basta ransomware group attacks targeted organizations by exploiting known vulnerabilities, system misconfigurations, and inadequate security controls. It has been determined that the group systematically focused on exposed Remote Desktop Protocol servers, weak authentication mechanisms, malware droppers disguised as legitimate files, and exposed RDP servers through analyzing its internal communications. 

In April 2022, blackBasta, a ransomware-as-a-service (RaaS) operation based in Russian, was first discovered. It is safe to say that Black Basta expanded quickly after the dismantling of the Conti ransomware group, taking advantage of the void left behind and including former Conti affiliates in its ranks in an effort to exploit the void left behind. Through this strategic expansion, the group was able to orchestrate attacks against hundreds of organizations throughout the world, establishing itself as an elite cybercriminal organization. 

According to cyber-intelligence firm Prodaft, the group's campaigns have declined steadily over the past couple of months, with its last known operations occurring in December, according to the firm. Since this group was previously one of the most dominant players in the ransomware landscape, it has been the subject of considerable attention within the cybersecurity community during this abrupt downturn in activity. There are numerous sophisticated attack vectors employed by Black Basta to compromise systems, which include the following. 

Among its primary tactics has been scanning for exposed RDP and VPN services around the world. This group frequently takes advantage of the default credentials available for VPN connections, or they use brute-force attacks to establish initial access by exploiting previously compromised credentials. Black Basta is also actively exploiting known Common Vulnerabilities and Exposures (CVEs) in unpatched systems, taking advantage of organizations that are not updated with security patches, or are behind in updating their security systems. 

To make malware deployment much easier, ransomware operators often use MSI (Microsoft Installer) and VBS (Visual Basic Script) malware droppers that deliver malicious payloads discreetly to make malware deployments easier. The majority of these payloads are executed by misusing system utilities such as Rundll32.exe, which can be used to execute harmful DLL files as a result. Additionally, this group focuses on credential harvesting and privilege escalation, which allows them to gain a deeper understanding of a compromised network and to increase their impact.

Black Bastion’s tactics have been evolving over the years and are becoming more persistent. This is why organizations should adopt a proactive cybersecurity strategy, ensuring regular patching, robust authentication protocols, and continuous network monitoring to minimize the risks posed by this malware. There is no denying that the sophistication of malware used by threat actors greatly influences the effectiveness of ransomware operations. 

As a result of developing and maintaining proprietary crypters, prominent ransomware groups like Play, Qilin, and BlackLock have distinguished themselves from the competition. It has been widely believed that leading cybercriminal organizations have used customized crypters to enhance the stealth and operational efficiency of their malware, making security systems more difficult to detect and mitigate. 


A strategic advantage for these organizations is the ability to market their malware as faster and more evasive than the competitors, which will help them attract high-level affiliates. However, other ransomware groups, such as Bl00dy, Dragonforce, and RA World, rely on leaked ransomware builders that were originally developed by Babuk or LockBit. In his opinion, Jim Wilson, a ReliaQuest security analyst, believes such groups are either lacking the technical expertise required to develop proprietary malware or they are not able to afford to pay skilled developers to develop proprietary malware. From a cybersecurity perspective, the reliance on publicly available tools creates opportunities for defenders, as it enables them to analyze code and develop targeted countermeasures based on that analysis. 

Recently, BlackLock has become increasingly popular within cybercriminal forums. Wilson has noted that the group actively recruits affiliates, initial access brokers, and experienced developers through the Ramp forum. The alias "$$$" is used to identify this group as active within the Ramp cybercrime forums. The BlackLock group also frequently recruits "traffers" which are cybercriminals who send victims to malicious websites before passing them off to more experienced operatives for execution. According to incident response firms, ransomware groups typically gain their first access to enterprise networks through phishing campaigns as well as by utilizing remote access tools. 

Cybercriminals often use known software vulnerabilities to attack systems by infiltrating them. Sophisticated ransomware groups are constantly trying to improve their attack strategies through utilizing innovative methods. There was a post made by "$$$" on Ramp on January 28, 2025, in which he asked hackers who had experience exploiting Microsoft's Entra Connect Sync, a software that allows Active Directory to be synchronized with Entra (formerly Azure Active Directory), to be exploited. 

Research published by SpecterOps in December 2024 was referenced as the basis for this request. As part of the research, attackers were able to inject their own Windows Hello for Business (WHFB) key into a victim's account to exploit Entra's synchronization mechanisms. Additionally, cybersecurity expert Garrity noted that Black Basta has demonstrated a proactive approach to vulnerability exploitation. 

The group reportedly discusses new vulnerabilities within days of security advisories being released and, while hesitant, considers purchasing exploits from emerging threat actors. Furthermore, there is evidence suggesting that Black Basta possesses the necessary resources to develop new exploits. Garrity’s analysis of Black Basta’s chat logs indicates a strategic yet opportunistic approach that prioritizes well-known vulnerabilities and high-value targets. 

While the group primarily leverages established exploit frameworks and widely available tools, discussions within their network suggest a potential for new exploit development and tactical evolution. For cybersecurity defenders, the key takeaway is the importance of prioritizing vulnerability remediation through an evidence-based security strategy. Cybersecurity firm Rapid7 has reported that Black Basta has continuously refined its social engineering techniques, incorporating enhanced malware payloads, improved delivery mechanisms, and advanced evasion tactics. 

The group has been observed leveraging Microsoft Teams to impersonate IT personnel, often masquerading as help desk or customer support representatives. Upon engaging a victim, attackers attempt to install remote management tools such as AnyDesk, TeamViewer, or ScreenConnect, deploy malicious QR codes, or establish a reverse shell using OpenSSH. Once access is secured, malware such as Zbot or DarkGate is used to escalate privileges, harvest credentials, and bypass multifactor authentication, ultimately leading to data exfiltration and ransomware deployment. 

A December 2024 attack investigated by ReliaQuest involved a Microsoft lookalike domain sending a flood of phishing emails to employees, followed by direct calls through Teams. Within minutes of gaining access via Quick Assist, the attacker established communication with a command-and-control server and began lateral movement within 48 minutes, successfully exfiltrating data from a manufacturing firm. Despite these ongoing attacks, intelligence from deep and dark web sources suggests that Black Basta’s leadership has exhibited signs of fatigue since mid-2024. 

According to RedSense analyst Bohuslavskiy, key members, including a critical administrator, have reportedly lost interest in ransomware operations, possibly due to prolonged involvement since 2019 or 2020. While the group appears to be scaling down, its infrastructure remains operational, with continued victim negotiations and ransomware deployments. However, declining operational standards have led to increased failures in decryption, rendering attacks even more destructive due to the group's growing negligence.

As well, Cybersecurity expert Garrity noted that Black Basta has been proactive when it comes to exploiting vulnerabilities. It has been reported that the group discusses new vulnerabilities as soon as security advisories are released, and while it is reluctant to buy exploits from emerging threat actors, the group is still considering doing so. Several pieces of evidence suggest that Black Basta possesses the necessary resources to develop new exploits based on evidence. 

According to Garrity's analysis of Black Basta's chat logs, the group takes a strategic yet opportunistic approach, prioritizing well-known vulnerabilities and high-value targets. Although the group primarily relies on established exploit frameworks and readily available tools, discussions within the group suggest that new exploits could be developed and tactically evolved in the future. 

Among the key takeaways for cybersecurity defenders is the importance of prioritizing vulnerability remediation as part of an evidence-based security strategy. According to Rapid7, Black Basta has continuously reworked its social engineering techniques, including enhancing malware payloads, improving delivery mechanisms, and incorporating evasion tactics to make it more effective than before. Observations have indicated that the group uses Microsoft Teams to impersonate IT employees, often masquerading as help desk or customer support representatives. 

As soon as the attacker engages a victim, he or she attempts to install remote management tools such as AnyDesk, TeamViewer, or ScreenConnect to deploy malicious QR codes, or to establish a reverse shell via OpenSSH in the event of an attack. Malware, such as Zbot, DarkGate, and other malicious programs, is then employed to escalate privileges, harvest credentials, and bypass multifactor authentication, resulting in data exfiltration and ransomware deployment. This attack is believed to have been perpetrated by a Microsoft-like domain that sent phishing emails to employees in December 2024, followed by direct calls through Teams. 

After gaining access via Quick Assist in less than five minutes, the attacker established a connection with a command and control server, started moving laterally within 48 minutes, and successfully extracted information from a manufacturing company within 48 minutes. However, information from deep and dark web sources suggests that the leadership of Black Basta has shown signs of fatigue since mid-2024 despite these ongoing attacks. 

It has been reported that RedSense analyst Bohuslavskiy believes key members, including a critical administrator, have lost interest in ransomware operations, possibly due to their prolonged involvement in the ransomware campaign from 2019 or 2020. Although the group appears to be reducing its operations, it has been continuing to negotiate with victims and deploy ransomware, despite its apparent scaling down. It is important to note that while operational standards are decreasing, more and more failures in decryption have arisen during the last few years, which has rendered attacks even more destructive due to the growing negligence of the group.
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Internal Chat Logs of Black Basta Ransomware Gang Leaked Online

 

A previously unidentified source has leaked what is claimed to be an archive of internal Matrix chat logs linked to the Black Basta ransomware group. The individual behind the leak, known as ExploitWhispers, initially uploaded the stolen messages to the MEGA file-sharing platform, which has since taken them down. However, they have now made the archive available through a dedicated Telegram channel.

It remains uncertain whether ExploitWhispers is a cybersecurity researcher who infiltrated the group's internal chat server or a discontented member of the operation. While no specific reason was provided for the leak, cybersecurity intelligence firm PRODAFT suggested that it could be a direct consequence of the ransomware gang’s alleged attacks on Russian banks.

"As part of our continuous monitoring, we've observed that BLACKBASTA (Vengeful Mantis) has been mostly inactive since the start of the year due to internal conflicts. Some of its operators scammed victims by collecting ransom payments without providing functional decryptors," PRODAFT stated.

"On February 11, 2025, a major leak exposed BLACKBASTA's internal Matrix chat logs. The leaker claimed they released the data because the group was targeting Russian banks. This leak closely resembles the previous Conti leaks."

The leaked archive contains internal chat messages exchanged between September 18, 2023, and September 28, 2024. A review conducted by BleepingComputer reveals that the messages encompass a broad range of sensitive information, including phishing templates, email addresses for targeting, cryptocurrency wallets, data dumps, victims' login credentials, and confirmations of previously reported attack strategies.

Additionally, the leaked records contain 367 unique ZoomInfo links, potentially reflecting the number of organizations targeted during the specified timeframe. Ransomware groups frequently use ZoomInfo to gather intelligence on their targets, either internally or for negotiations with victims.

ExploitWhispers also disclosed information about key Black Basta members, identifying Lapa as an administrator, Cortes as a threat actor connected to the Qakbot malware group, and YY as the primary administrator. Another individual, referred to as Trump (also known as GG and AA), is believed to be Oleg Nefedov, who is suspected of leading the operation.

Black Basta operates as a Ransomware-as-a-Service (RaaS) group, first emerging in April 2022. The gang has targeted several high-profile organizations across various industries, including healthcare, government contractors, and major corporations.

Notable victims include German defense contractor Rheinmetall, Hyundai's European division, BT Group (formerly British Telecom), U.S. healthcare provider Ascension, government contractor ABB, the American Dental Association, U.K. tech outsourcing firm Capita, the Toronto Public Library, and Yellow Pages Canada.

A joint report from CISA and the FBI, published in May 2024, revealed that Black Basta affiliates compromised more than 500 organizations between April 2022 and May 2024.

Research from Corvus Insurance and Elliptic estimates that the ransomware gang collected approximately $100 million in ransom payments from over 90 victims by November 2023.

This incident bears similarities to the February 2022 data breach involving the Russian-based Conti cybercrime syndicate. At that time, a Ukrainian security researcher leaked over 170,000 internal chat messages and the source code for the Conti ransomware encryptor, following the group's public support for Russia amid the Ukraine conflict.
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Black Basta Cyber Attacks Cybersecurity Precautions Hackers MFA Microsoft Microsoft 365 Microsoft Office vulnerability Microsoft Teams

Hackers Exploit Microsoft Teams for Phishing and Malware Attacks

 

Cybercriminals are increasingly targeting Microsoft Teams, utilizing the platform for sophisticated phishing, vishing, and ransomware campaigns. Exploiting Teams' widespread use, attackers employ social engineering tactics to deceive users and extract sensitive data. Methods range from fake job offers to malicious file sharing, aiming to infiltrate accounts and compromise organizational networks.

Bypassing Multifactor Authentication

One notable tactic involves bypassing multifactor authentication (MFA). Threat actors, reportedly linked to the SolarWinds attack, create fraudulent “onmicrosoft.com” subdomains designed to mimic legitimate security entities. They send chat requests via Microsoft Teams, prompting users to enter a code into the Microsoft Authenticator app. This action grants attackers unauthorized access to Microsoft 365 accounts, enabling data theft or the integration of malicious devices into corporate networks.

The Black Basta ransomware group employs a different strategy by overwhelming users with spam emails and impersonating IT support staff on Teams. Claiming to assist with email issues, they persuade victims to install remote desktop tools, providing attackers with direct access to deploy malware. This includes Trojans and ransomware designed to exfiltrate sensitive data and compromise systems.

Another prevalent scheme involves fake job offers. Scammers contact individuals with fabricated employment opportunities, sometimes conducting entire interviews via Microsoft Teams chat. These scams often escalate to requests for personal information, such as Social Security numbers or tax details. In some cases, victims are asked to pay for materials or services, resulting in financial loss and potential identity theft.

Attackers also impersonate HR personnel, sending phishing messages about urgent policy updates. These messages frequently include malicious files disguised as legitimate updates. Once downloaded, malware like DarkGate is installed, granting attackers control over the victim’s system and network.

Additionally, compromised Microsoft 365 accounts are used to distribute malicious files through Teams chats. These files often appear as PDFs with double extensions, deceiving users into downloading executable malware. Once activated, these programs can breach data and facilitate deeper network infiltration.

Mitigation Strategies for Organizations and Users

Vigilance is essential in countering these threats. Users should verify unexpected messages, invitations, or file-sharing requests, especially those containing links or urgent calls to action. Tools that check link safety and domain age can help detect phishing attempts.

Organizations should prioritize employee education on recognizing scams and enforcing robust cybersecurity protocols. By staying informed and cautious, users can mitigate risks and safeguard against cyberattacks targeting Microsoft Teams.

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AI Black Basta Cyberattacks CyberCrime Cybersecurity CyberThreat malware QakBot Botnet ransomware attacks

Black Basta Unleashes Custom Malware Following Qakbot Takedown

 


Following last year's takedown of the Qakbot botnet, the Black Basta ransomware group has switched to relying on new custom tools and initial access techniques as part of a shift in strategy, as part of this year's efforts to reduce the threat. In response to the escalating threat from ransomware gangs, the Black Basta group has demonstrated a great deal of resilience and an ability to adapt due to the addition of new custom tools and tactics that have been developed to conceal their presence.

With a total of over 500 victims compromised, the group's evolution illustrates the resilience of cyber criminals who have had to change tactics based on law enforcement and other disruptions due to the group's evolution, experts say. Although cybercriminals have faced numerous disruptions due to law enforcement, they continue to flourish in their cybercriminal operations. Black Basta has been known to attack several companies around the world and has been known to do so from as early as the second week of April 2022. 

Currently, there is not much other information available about the new ransomware gang, since they have not yet advertised themselves to the hacking community or recruited affiliates through hacking forums. It seems, however, that by how they can rapidly accumulate new victims and how their negotiations have been conducted, they are not necessarily a new operation. They are likely to be rebranding an old top-tier ransomware gang that brought along their affiliates with them. There is a double-extortion strategy used by the ransomware group, combining data theft and encryption in addition to demanding large ransom payments that can easily reach millions of dollars. 

As part of its earlier campaign of gaining access to corporate networks, the ransomware gang previously formed a partnership with the QBot botnet. The ransomware gang, however, had to create new partnerships after law enforcement was able to disrupt the QBot botnet, according to Mandiant, for them to breach the corporate networks of companies. Further, as part of its monitoring of the UNC4393 threat actors, Mandiant has identified new malware and tools that are being used as part of the Black Basta intrusions, exhibiting the evolution and resilience of the attackers. 

Black Basta has had a busier year than most gangs, with its members compromising some of the largest companies and brands in the world, including Veolia North America, Hyundai Motor Europe, and Keytronic. One of the most telling signs of the sophistication of the threat group is that it has access to zero-day vulnerability exploits, such as the exploit for Windows privilege elevation (2024-26169) and the exploit for VMware ESXi authentication bypass flaw (CVE-2024-37085). 

The most defining characteristic of Black Basta is its prolific use of Qakbot, which was distributed through sophisticated, evolving phishing campaigns that gave rise to the company's reputation. As a Trojan initially deployed to gain access to a victim's computer, Qakbot can then deploy a wide array of open-source tools, like the gang's name-branded ransomware, which is publicly available. After a year or so, the Qakbot botnet went mostly out of commission (though it has re-surfaced since then) as part of a government law enforcement campaign called Operation Duck Hunt in which the group was forced to find new ways of accessing victim infrastructure to conduct their operations. 

The Mandiant research team revealed in a blog post published this week that Black Basta initially used phishing and even vishing as a means to spread other types of malware, such as Darkgate and Pikabot, but within a short period began looking for alternative methods to spread many more threats. According to Mandiant researchers in a post published last month, the group, known as UNC4393, has settled into a phase of transition in recent attacks in which the group is no longer using readily available tools but rather developing custom malware, as well as relying more heavily on access brokers and diversifying the initial access technique. 

As a result of the FBI and DOJ shutting down QBot's infrastructure in late 2023, Black Basta turned to other initial access distribution clusters, most notably those delivering DarkGate malware, as a means of gaining access to systems. In later stages, Black Basta switched to using SilentNight, a tool for the delivery of backdoor malware used for keylogging, to get initial access to their network, which marked a shift away from phishing as the primary method of accessing the network. 

For example, one of the process by which the group gains initial access involves deploying a backdoor called SilentNight, which the group used in 2019 and 2021 to gain access, but put on hold until last year when it was reactivated for the second time. Earlier this year, Black Basta initiated the utilization of a new tactic in their malicious operations by incorporating malvertising efforts, representing a significant deviation from their previously sole reliance on phishing as the initial access method. This shift was highlighted by cybersecurity researchers in a detailed post, emphasizing the strategic evolution of Black Basta's methods. 

SilentNight, a sophisticated C/C++ backdoor, has been identified as a critical component of Black Basta's recent campaigns. This malware communicates via HTTP/HTTPS and potentially employs a domain generation algorithm for its command and control (C2) infrastructure. The backdoor boasts a modular framework, which supports an array of plug-ins providing extensive functionality. These capabilities include system control, screenshot capture, keylogging, file management, and cryptocurrency wallet access. 

Notably, SilentNight also targets credentials through browser manipulation, making it a versatile and potent tool in Black Basta's arsenal. Upon gaining access to targeted environments, Black Basta employs a combination of living-off-the-land (LotL) techniques and custom malware to maintain persistence and facilitate lateral movement. This preparation stage precedes the deployment of ransomware. Researchers have noted that the ultimate objective of UNC4393, the group behind Black Basta, is to rapidly gather and exfiltrate as much data as possible. 

The collected data is then used in multi-faceted extortion schemes, where the threat of data leakage is leveraged to coerce victims into meeting ransom demands. Mandiant's latest report indicates a notable transition within Black Basta from the use of publicly available tools to the deployment of internally developed custom malware. This shift underscores the group’s adaptability and the ongoing threat it poses to organizations of all sizes. 

A security expert emphasized this resilience, pointing out that despite moving away from phishing—a highly successful cybercrime technique—Black Basta continues to present a significant risk. Erich Kron, a security awareness advocate at KnowBe4, commented on the group's operational capabilities, noting, "Given the success of this gang, there's no doubt they have a considerable amount of funds stocked away in their war chest, allowing them to develop their tools and improve their ability to attack." 

This financial backing enables Black Basta to innovate continuously, enhancing its tools and techniques to outmanoeuvre defences. Mandiant researchers further stressed the importance for defenders to adopt a proactive stance, fortifying their security measures with cutting-edge technology and up-to-date threat intelligence. Black Basta's recent attacks have continued to exploit "living off the land" binaries and readily available tools, such as the Windows certutil command-line utility for downloading SilentNight and the Rclone tool for data exfiltration. 

In conclusion, Black Basta remains a formidable global threat and one of the leading entities in the ransomware landscape. Their ability to adapt and evolve necessitates vigilance and advanced defensive strategies from cybersecurity professionals worldwide.
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Are We Ready for the Next Wave of Cyber Threats?



In our increasingly digital world, cybersecurity is a growing concern for everyone— from businesses and governments to everyday individuals. As technology advances, it opens up exciting possibilities and creates new, sophisticated cyber threats. Recent high-profile attacks, like those on Ascension and the French government, show just how damaging these threats can be.

Cybercriminals are always finding new ways to exploit weaknesses. According to Cybersecurity Ventures, global cybercrime damages could hit $10.5 trillion a year by 2025. This huge number highlights why strong cybersecurity measures are so important.

One major evolution in cyber threats is seen in ransomware attacks. These attacks used to be about locking up data and demanding a ransom to unlock it. Cybercriminals also steal data and threaten to release it publicly, which can disrupt businesses and ruin reputations. For example, in May, the Black Basta group attacked Ascension, the largest non-profit Catholic health system in the U.S., disrupting operations in its 140 hospitals and affecting patient care.

Supply chain attacks are another big concern. These attacks target vulnerabilities in the network of suppliers and partners that businesses rely on. This makes securing the entire supply chain crucial.

Cybercriminals are also using artificial intelligence (AI) to make their attacks more powerful. Examples include DeepLocker, a type of AI-powered malware that stays hidden until it reaches its target, and deepfake scams, where AI creates fake videos or audio to trick people into transferring money. AI-driven malware can change its behaviour to avoid detection, making it even more dangerous.

Distributed denial-of-service (DDoS) attacks are another serious threat. These attacks flood a website or network with so much traffic that it can’t function. In March 2024, a massive DDoS attack targeted over 300 web domains and 177,000 IP addresses linked to the French government, causing major disruptions.

Building a Strong Cybersecurity Defense

To fight these evolving threats, businesses need to build strong cybersecurity defenses. One effective approach is the zero-trust model, which means every access request is verified, no matter where it comes from. Key parts of this model include multi-factor authentication (MFA), which requires more than one form of verification to access systems, and least privilege access, which ensures users only have access to what they need to do their job.

Advanced monitoring tools are also essential. Security information and event management (SIEM) systems, combined with AI-driven analytics, help detect and respond to threats in real time by providing a comprehensive view of network activities.

Human error is a major vulnerability in cybersecurity, so employee training and awareness are crucial. Regular training programs can help employees recognise and respond to threats like phishing attacks, creating a culture of security awareness.

The Role of AI in Cybersecurity

While AI helps cybercriminals, it also offers powerful tools for defending against cyber threats. AI can analyse vast amounts of data to spot patterns and anomalies that might indicate an attack. It can detect unusual behaviour in networks and help security analysts respond more quickly and efficiently to threats.

AI can also identify and mitigate insider threats by analysing user behaviour and spotting deviations from typical activity patterns. This helps strengthen overall security.

The future of cybersecurity will involve constant innovation and adaptation to new challenges. AI will play a central role in both defence and predictive analytics, helping foresee and prevent potential threats. Ethical considerations and developing frameworks for responsible AI use will be important.

Businesses need to stay ahead by adopting new technologies and continuously improving their cybersecurity practices. Collaboration between industries and with government agencies will be crucial in creating comprehensive strategies.

Looking to the future, we need to keep an eye on potential threats and innovations. Quantum computing promises new breakthroughs but also poses a threat to current encryption methods. Advances in cryptography will lead to more secure ways to protect data against emerging threats.

As cyber threats evolve, staying informed and adopting best practices are essential. Continuous innovation and strategic planning are key to staying ahead of cybercriminals and protecting critical assets.


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Technology
Black Basta Company Breach Ransomware Stolen Data Technology

Securing Sensitive Data: Lessons from Keytronic’s Recent Breach


Keytronic, a prominent printed circuit board assembly (PCBA) manufacturer, recently confirmed a significant data breach. The breach occurred after the Black Basta ransomware gang leaked over 500GB of the company’s stolen data. In this blog post, we delve into the details of the breach, its impact, and Keytronic’s response.

The Breach Details

Attack Timeline 

The breach came to light two weeks ago when Black Basta claimed responsibility for the attack. Keytronic had reported the cyberattack in an SEC filing over a month ago, on May 62.

Operational Disruption 

The attack disrupted Keytronic’s operations, limiting access to critical business applications. As a result, the company had to shut down domestic and Mexico operations for two weeks to address the incident.

Stolen Data

The stolen data included sensitive information such as human resources, finance, engineering, and corporate data. Black Basta shared screenshots of employees’ passports, social security cards, customer presentations, and corporate documents2.

As required by new SEC criteria, the Company has also stated that the attack and loss of production will have a material impact on its financial position in the fourth quarter of 2024, ending on June 29.

Impact and Response

Personal Information Compromised: Keytronic confirmed that personal information was stolen during the breach. The threat actor accessed and exfiltrated limited data from the company’s environment, including personally identifiable information.

Financial Implications: The resulting production loss could impact Keytronic’s financial condition for the fourth quarter, which ends on June 29. The company incurred approximately $600,000 in expenses for external cybersecurity experts, with more costs anticipated.

Lessons Learned

The company has already spent around $600,000 on hiring external cybersecurity experts and expects to pay more. While Keytronic could not identify a specific threat group, the Black Basta ransomware organization claimed the attack two weeks ago, revealing what they claim is all of the stolen data.

The threat actors say that the attack stole human resources, finance, engineering, and business data, and they have shared photos of employee passports and social security cards, as well as customer presentations and company documents.

Black Basta Ransomware

The Black Basta ransomware operation began in April 2022 and is thought to be made up of former members of the Conti ransomware operation, which broke into smaller groups after it shut down.

Black Basta has since grown to be one of the biggest and most damaging ransomware operations, responsible for a large number of attacks, including those against Capita, Hyundai's European division, the Toronto Public Library, the American Dental Association, and, most recently, a ransomware attack on U.S. healthcare giant Ascension.

Between April 2022 and May 2024, a ransomware campaign breached 500 businesses and stole data from at least 12 out of 16 key infrastructure sectors, according to CISA and the FBI.
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Ransomware
Black Basta Cyber Security Microsoft Quick Assist RaaS Ransomware

Cybercriminals Exploit Windows Quick Assist in Latest Ransomware Campaign

 

A recent wave of cyberattacks has seen financially motivated criminals leveraging Windows Quick Assist, a built-in remote control and screen-sharing tool, to deploy Black Basta ransomware on victim networks. Microsoft has investigated these attacks since mid-April 2024, identifying the threat group behind them as Storm-1811.

The attacks typically begin with email bombing, where the target's inbox is flooded with spam emails. This overload is followed by a phone call from the attackers, who impersonate Microsoft technical support or the victim's IT help desk. They offer to help resolve the spam issue, tricking victims into granting remote access via Quick Assist.

Once access is granted, the attackers execute a scripted command to download malicious files, including Qakbot malware, remote monitoring tools like ScreenConnect and NetSupport Manager, and the Cobalt Strike framework. These tools enable the attackers to perform domain enumeration and move laterally across the network. Eventually, they deploy Black Basta ransomware using PsExec, a telnet-replacement tool.

Rapid7, a cybersecurity company that also detected these attacks, noted that attackers use batch scripts to harvest credentials from the command line using PowerShell. These credentials are often exfiltrated to the attackers' server via Secure Copy (SCP). In some cases, credentials are saved to an archive for later retrieval.

To mitigate these attacks, Microsoft advises organisations to disable or uninstall Quick Assist and similar remote tools if they are not used. Employees should be trained to recognise tech support scams and instructed to only allow remote access if they initiated the contact with IT support. Suspicious Quick Assist sessions should be immediately disconnected.

The Black Basta ransomware operation emerged after the Conti cybercrime group disbanded two years ago following multiple data breaches. Black Basta began operating as a Ransomware-as-a-Service (RaaS) in April 2022 and has since attacked numerous high-profile targets, including defence contractor Rheinmetall, technology company Capita, Hyundai's European division, and the American Dental Association.

Recent attacks linked to Black Basta include a ransomware incident at U.S. healthcare giant Ascension, which disrupted ambulance services. According to a joint advisory by CISA and the FBI, Black Basta affiliates have breached over 500 organisations across 12 out of 16 critical infrastructure sectors since April 2022, causing data breaches and encryption.

Health-ISAC, an information sharing and analysis centre, has warned of increased attacks against the healthcare sector by Black Basta. Research by Elliptic and Corvus Insurance indicates that the group has extorted at least $100 million in ransom payments from over 90 victims by November 2023.

Microsoft is enhancing Quick Assist to improve transparency and trust between users, including adding warning messages to alert users about potential scams. Rapid7 observed similar scams targeting their customers, with attackers using other remote monitoring tools like AnyDesk.

To prevent such attacks, organisations should block unapproved remote management tools and train staff to recognise and report suspicious calls and messages. Quick Assist should only be used if the interaction was initiated by contacting official support channels.

The recent misuse of Windows Quick Assist in deploying Black Basta ransomware pushes forward the vision for increased vigilance and robust cybersecurity practices to save all our digital assets from such social engineering attacks.


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