VEEAM exploit seen used again with a new ransomware: “Frag
Last month, Sophos X-Ops reported several MDR cases where threat actors exploited a vulnerability in Veeam backup servers. We continue to track the activities of this threat cluster, which recently…
Delaying security updates and neglecting regular reviews created vulnerabilities that were exploited by attackers, resulting in severe ransomware consequences. Initial access via FortiGate Firewall SSL VPN using a dormant account Deployed persistent backdoor (“svchost.exe”) on the failover server, and conducted lateral movement via RDP. Exploitation attempts of CVE-2023-27532 was followed by activation of xp_cmdshell and rogue user account creation. Threat actors made use of NetScan, AdFind, and various tools provided by NirSoft to conduct network discovery, enumeration, and credential harvesting. * Windows Defender was permanently disabled using DC.exe, followed by ransomware deployment and execution with PsExec.exe.
