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様々なランサムウェアに対応するAppCheckの事前防御、自動復旧およびリアルタイムバックアップ機能を映像でご確認いただけます。
- Distribution Method : Unknown
- MD5 : 7212675ad49b5134c6dc7509669b1526
- Major Detection Name : Ransom:Win32/MedusaLocker.AC!MTB (Microsoft), Troj/Medusa-Fam (Sophos)
- Encrypted File Pattern : .cipher1
- Malicious File Creation Location :
- C:\Users\%UserName%\AppData\Roaming\svhost.exe
- C:\Windows\System32\Tasks\svhost
- Message File : !-Recovery_Instructions-!.html
- Major Characteristics :
- Offline Encryption
- EFI System Partition (X:\) + Recovery Partition (Y:\) drives are activate.
- Turns off User Access Control (UAC)
- Block processes execution (MsDtsServer130.exe, MSSQLFDLauncher.exe, ReportServer.exe, SQLSERVERAGENT.exe, TMBMServer.exe, wxServer.exe etc.)
- Stop multi services (ccEvtMgr, FirebirdGuardianDefaultInstance, MSSQLFDLauncher, SQLSERVERAGENT, storflt, vmickvpexchange 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 task scheduler to automatically run the file "%AppData%\svhost.exe" for every 30 minutes.