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The Hacker News - Cybersecurity News and Analysis: Hive Ransomware

Experts Analyze Conti and Hive Ransomware Gangs' Chats With Their Victims

Experts Analyze Conti and Hive Ransomware Gangs' Chats With Their Victims

May 03, 2022Ravie Lakshmanan
An analysis of four months of chat logs spanning more than 40 conversations between the operators of Conti and Hive ransomware and their victims has offered an insight into the groups' inner workings and their negotiation techniques. In one exchange, the Conti Team is said to have significantly reduced the ransom demand from a staggering $50 million to $1 million, a 98% drop, suggesting a willingness to settle for a far lower amount. "Both Conti and Hive are quick to lower ransom demands, routinely offering substantial reductions multiple times throughout negotiations," Cisco Talos  said  in a report shared with The Hacker News. "This signals that despite popular belief, victims of a ransomware attack actually have significant negotiating power." Conti  and  Hive  are among the most prevalent ransomware strains in the threat landscape, cumulatively accounting for  29.1% of attacks  detected during the three-month-period between October and December 2021. A
New Incident Report Reveals How Hive Ransomware Targets Organizations

New Incident Report Reveals How Hive Ransomware Targets Organizations

April 21, 2022Ravie Lakshmanan
A recent Hive ransomware attack carried out by an affiliate involved the exploitation of "ProxyShell" vulnerabilities in the Microsoft Exchange Server that were disclosed last year to encrypt an unnamed customer's network. "The actor managed to achieve its malicious goals and encrypt the environment in less than 72 hours from the initial compromise," Varonis security researcher, Nadav Ovadia,  said  in a post-mortem analysis of the incident.  Hive, which was  first observed  in June 2021, follows the lucrative ransomware-as-a-service (RaaS) scheme adopted by other cybercriminal groups in recent years, enabling affiliates to deploy the file-encrypting malware after gaining a foothold into their victims' networks. ProxyShell  — tracked as CVE-2021-31207, CVE-2021-34523, and CVE-2021-34473 — involves a combination of security feature bypass, privilege escalation, and remote code execution in the Microsoft Exchange Server, effectively granting the attacker
Master Key for Hive Ransomware Retrieved Using a Flaw in its Encryption Algorithm

Master Key for Hive Ransomware Retrieved Using a Flaw in its Encryption Algorithm

February 19, 2022Ravie Lakshmanan
Researchers have detailed what they call the "first successful attempt" at decrypting data infected with Hive ransomware without relying on the private key used to lock access to the content. "We were able to recover the master key for generating the file encryption key without the attacker's private key, by using a cryptographic vulnerability identified through analysis," a group of academics from South Korea's Kookmin University  said  in a new paper dissecting its encryption process. Hive, like other cybercriminal groups, operates a ransomware-as-a-service that uses different mechanisms to compromise business networks, exfiltrate data, and encrypt data on the networks, and attempts to collect a ransom in exchange for access to the decryption software. It was  first observed  in June 2021, when it struck a company called Altus Group. Hive leverages a variety of initial compromise methods, including vulnerable RDP servers, compromised VPN credentials,
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