CyberzSOC

Finally, the registry is modified to allow Remote Desktop connections: fDenyTSConnections /t REG_DWORD /d 0 /f Mimikatz has also been observed in use for Local Security Authority Subsystem Service (LSASS) dumping [T1003.001] to harvest credentials [TA0006] and aid lateral movement. Medusa actors install and use Rclone to facilitate exfiltration of data to the Medusa C2 servers [T1567.002] used by actors and affiliates. The actors use Sysinternals PsExec, PDQ Deploy, or BigFix [T1072] to deploy the encryptor, gaze.exe, on files across the network—with the actors disabling Windows Defender and other antivirus services on specific targets. The process gaze.exe terminates all services [T1489] related to backups, security, databases, communication, file sharing and websites, then deletes shadow copies [T1490] and encrypts files with AES-256 before dropping the ransom note. The actors then manually turn off [T1529] and encrypt virtual machines and delete their previously installed tools [T1070]. Medusa RaaS employs a double extortion model, where victims must pay [T1657] to decrypt files and prevent further release.