“The identities of the remaining 223 victims currently remain concealed by the threat actors.” “Our analysis reveals that 257 companies have fallen prey to this malicious software, with 34 of the victims/organisations identified by name,” he said. Sinitsyn said that 257 companies had fallen victim to the ransomware strain, the majority of which have not been disclosed by threat actors. The analysis found that 34 folders “explicitly named companies and government agencies” impacted by the strain. “It is vital that organisations take proactive measures to protect their systems against such attacks, including regular data backups and robust cybersecurity measures.” “Our research indicates that the private keys were operational between the 13th of November 2022 and the 5th of February 2023, and the last decryptor we identified was on the 9th of February,” he said. However, Fedor Sinitsyn, lead malware analyst at Kaspersky, told IT Pro that this strain could have been active for some time. Leaked keys for the MeowCorp variant were uncovered by Kaspersky researchers in December 2022. When Conti source code was leaked last year, a slew of new modifications and strains emerged and were used to devastating effect by cyber criminal gangs. Hundreds of organisations impactedįirst observed in 2019, Conti’s eponymous ransomware strain was among the most prolific throughout 2020, accounting for more than 13% of all ransomware victims across that period. In addition, the tool has been added to Kaspersky’s long-running No Ransom site. Kaspersky said the decryption code and all 258 keys were added to the latest build of its RakhniDecryptor utility. “Presumably the latter are test files – a couple of files that the victim sends to the attackers to make sure that the files can be decrypted.” Some of them contain previously generated decryptors and several ordinary files: documents, photos, etc,” the company said in a statement this week. “The leaked private keys are located in 257 folders (only one of these folders contains two keys).
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