![]() ![]() More reinfections may be more common rather than new affected hosts, she said.Īs of Thursday, Censys research showed a majority of those reinfections occurred in France, where attacks were initially reported, as well as the U.S. Censys and CISA confirmed 3,800 servers have already been compromised by the original ESXiArgs strain.īased on the emergence of the new variant, Austin told TechTarget Editorial she does not think it's going away immediately. ![]() "Over the last 24 hours, just over 900 hosts have upgraded to the latest ransomware variant," Austin and Ellzey wrote in the blog post Thursday.Īs of Friday, Censys search scans showed 1,267 exposed ESXi instances infected with the new strain. Now, however, those tools may be useless, leaving enterprises potentially open to increased attacks. Sonmez and Aykac discovered an error in the encryption process of the original ESXiArgs strain and developed a script that could help victims recover some of their data. CISA published a data recovery tool for enterprises on GitHub Wednesday, based on the work of Enes Sonmez and Ahmet Aykac, security researchers with the YoreGroup Tech Team. Censys researchers Emily Austin and Mark Ellzey updated their original threat intelligence blog post Thursday showing the new variant may be reinfecting servers rapidly, and detailed other notable factors.īleepingComputer first reported the new ESXiArgs strain on Wednesday and found it encrypted additional data in vulnerable ESXi instances and also made data recovery much more difficult.Īustin and Ellzey warned the new strain renders existing decryption tools ineffective. ![]() ESXiArgs attacks are not only ongoing but the ransomware has also evolved to make it more difficult for enterprises to recover. The large-scale ransomware campaign has targeted vulnerable VMware ESXi servers since last week. ![]()
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