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The Hacker News - Most Trusted Cyber Security and Computer Security Analysis: BlackCat

BlackCat Ransomware Attackers Spotted Fine-Tuning Their Malware Arsenal

BlackCat Ransomware Attackers Spotted Fine-Tuning Their Malware Arsenal

September 26, 2022
The  BlackCat ransomware crew  has been spotted fine-tuning their malware arsenal to fly under the radar and expand their reach. "Among some of the more notable developments has been the use of a new version of the Exmatter data exfiltration tool, and the use of Eamfo, information-stealing malware that is designed to steal credentials stored by Veeam backup software," researchers from Symantec  said  in a new report. BlackCat, also known by the names ALPHV and Noberus, is attributed to an adversary tracked as Coreid (aka  FIN7 , Carbanak, or Carbon Spider) and is said to be a  rebranded successor  of  DarkSide  and  BlackMatter , both of which shut shop last year following a string of high-profile attacks, including that of Colonial Pipeline. The threat actor, like other notorious ransomware groups, is known to run a ransomware-as-a-service (RaaS) operation, which involves its core developers enlisting the help of affiliates to carry out the attacks in exchange for a cut
Emotet Botnet Started Distributing Quantum and BlackCat Ransomware

Emotet Botnet Started Distributing Quantum and BlackCat Ransomware

September 19, 2022
The Emotet malware is now being leveraged by ransomware-as-a-service (RaaS) groups, including Quantum and BlackCat, after  Conti's official retirement  from the threat landscape this year. Emotet  started off as a banking trojan in 2014, but updates added to it over time have transformed the malware into a highly potent threat that's capable of downloading other payloads onto the victim's machine, which would allow the attacker to control it remotely. Although the infrastructure associated with the invasive malware loader was taken down as part of a law enforcement effort in January 2021, the Conti ransomware cartel is said to have  played an instrumental role  in its comeback late last year. "From November 2021 to Conti's dissolution in June 2022, Emotet was an exclusive Conti ransomware tool, however, the Emotet infection chain is currently attributed to Quantum and BlackCat," AdvIntel  said  in an advisory published last week. Typical attack sequences
BlackCat Ransomware Gang Targeting Unpatched Microsoft Exchange Servers

BlackCat Ransomware Gang Targeting Unpatched Microsoft Exchange Servers

June 16, 2022
Microsoft is warning that the BlackCat ransomware crew is leveraging exploits for  unpatched Exchange server  vulnerabilities to gain access to targeted networks. Upon gaining an entry point, the attackers swiftly moved to gather information about the compromised machines, followed by carrying out credential theft and lateral movement activities, before harvesting intellectual property and dropping the ransomware payload. The entire sequence of events played out over the course of two full weeks, the Microsoft 365 Defender Threat Intelligence Team  said  in a report published this week. "In another incident we observed, we found that a ransomware affiliate gained initial access to the environment via an internet-facing Remote Desktop server using compromised credentials to sign in," the researchers said, pointing out how "no two BlackCat 'lives' or deployments might look the same." BlackCat , also known by the names ALPHV and Noberus, is a relatively n
FBI Warns of BlackCat Ransomware That Breached Over 60 Organisations Worldwide

FBI Warns of BlackCat Ransomware That Breached Over 60 Organisations Worldwide

April 25, 2022
The U.S. Federal Bureau of Investigation (FBI) is sounding the alarm on the BlackCat ransomware-as-a-service (RaaS), which it said victimized at least 60 entities worldwide between as of March 2022 since its emergence last November. Also called ALPHV and  Noberus , the malware is notable for being the first-ever ransomware written in the Rust programming language, which is known to be memory safe and offer improved performance. "Many of the developers and money launderers for BlackCat/ALPHV are linked to  DarkSide / BlackMatter , indicating they have extensive networks and experience with ransomware operations," the FBI said in an  advisory  published last week. The disclosure comes weeks after twin reports from  Cisco Talos  and  Kasperksy  uncovered links between BlackCat and BlackMatter ransomware families, including the use of a modified version of a data exfiltration tool dubbed Fendr that's been previously only observed in BlackMatter-related activity. "A
Researchers Connect BlackCat Ransomware with Past BlackMatter Malware Activity

Researchers Connect BlackCat Ransomware with Past BlackMatter Malware Activity

April 08, 2022
Cybersecurity researchers have uncovered further links between BlackCat (aka ALPHV) and BlackMatter ransomware families, the former of which emerged as a replacement following international scrutiny last year. "At least some members of the new  BlackCat  group have links to the BlackMatter group, because they modified and reused a custom exfiltration tool [...] and which has only been observed in BlackMatter activity," Kaspersky researchers  said  in a new analysis. The tool, dubbed Fendr, has not only been upgraded to include more file types but also used by the gang extensively to steal data from corporate networks in December 2021 and January 2022 prior to encryption, in a popular tactic called double extortion. The findings come less than a month after Cisco Talos researchers  identified  overlaps in the tactics, techniques, and procedures (TTPs) between BlackCat and BlackMatter, describing the new ransomware variant as a case of "vertical business expansion.&qu
Experts Find Some Affiliates of BlackMatter Now Spreading BlackCat Ransomware

Experts Find Some Affiliates of BlackMatter Now Spreading BlackCat Ransomware

March 18, 2022
An analysis of two ransomware attacks has  identified overlaps  in the tactics, techniques, and procedures (TTPs) between BlackCat and BlackMatter, indicating a strong connection between the two groups. While it's typical of ransomware groups to rebrand their operations in response to increased visibility into their attacks,  BlackCat  (aka Alphv) marks a new frontier in that the cyber crime cartel is built out of affiliates of other ransomware-as-a-service (RaaS) operations. BlackCat first emerged in November 2021 and has since targeted several organizations worldwide over the past few months. It has been called out for being similar to  BlackMatter , a short-lived ransomware family that originated from  DarkSide , which, in turn, attracted notoriety for its high-profile attack on  Colonial Pipeline  in May 2021. In an interview with Recorded Future's The Record last month, a BlackCat representative dismissed speculations that it's a rebranding of BlackMatter, while n
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