Videos
Check out our video library AppCheck defending against newest ransomware, automatic recovery and real-time backup.
- Distribution Method : Unknown
- MD5 : 858ffbe870a7454c4a59f889d8d49169
- Major Detection Name : TR/AD.MedusaRansom.yvkui (Avira), Generic.Ransom.MedusaLocker.942644D7 (BitDefender)
- Encrypted File Pattern : .support
- Malicious File Creation Location :
- C:\Users\%UserName%\AppData\Roaming\svhost.exe
- C:\Windows\System32\Tasks\svhost
- Payment Instruction File : Recovery_Instructions.html
- Major Characteristics :
- Offline Encryption
- EFI System Partition (X:\) and Recovery Partition (Y:\) drives are activate.
- Turns off User Access Control (UAC)
- Block processes execution (360doctor.exe, Culture.exe, MsDtSrvr.exe, RTVscan.exe, sqlservr.exe, tomcat6.exe etc.)
- Stop multi services (ccEvtMgr, Culserver, QuickBooks, SQLADHLP, sqlservr, vmware-converter etc.)
- Disable system restore (vssadmin.exe Delete Shadows /All /Quiet, bcdedit.exe /set {default} recoveryenabled No, bcdedit.exe /set {default} bootstatuspolicy ignoreallfailures, wbadmin DELETE SYSTEMSTATEBACKUP, wbadmin DELETE SYSTEMSTATEBACKUP -deleteOldest, wmic.exe SHADOWCOPY /nointeractive)
- Adds svhost to scheduler to execute "%AppData%\svhost.exe" Every 15 minutes.