- Distribution Method : Unknown
- MD5 : 664109f1a5d05f1c428d9c2d96c313c7
- Major Detection Name : TR/AD.ZardRansom.oiyca (Avira), a variant of Win32/Kryptik.GOVU (ESET)
- Encrypted File Pattern : .GEFEST
- Malicious File Creation Location :
- C:\Users\%UserName%\AppData\Roaming\systemwindows.exe
- C:\Users\%UserName%\HOW TO RECOVER ENCRYPTED FILES.TXT
- Payment Instruction File : HOW TO RECOVER ENCRYPTED FILES.TXT
- Major Characteristics :
- Offline Encryption
- Amnesia / Scarabey Ransomware series
- Use a "DON'T MISS A WORD LIMITED" Digital Signatures
- Disable and Blocks Registry Editor (regedit.exe) and Task Manager (Taskmgr.exe)
- Block processes execution (mysqld.exe, mysqld-nt.exe, mysqld-opt.exe, oracle.exe, sqlwriter.exe, steam.exe etc)
- Checks following folder name for encryption: Adobe, Archive, Backup, Firebird, Microsoft, Microsoft SQL Server, Microsoft SQL Server Compact Edition, MSSQL.1, Oracle, Reserv, Restore.
- Disable system restore (wbadmin DELETE SYSTEMSTATEBACKUP -keepVersions:0, wmic SHADOWCOPY DELETE, vssadmin Delete Shadows /All /Quiet, bcdedit /set {default} recoveryenabled No, bcdedit /set {default} bootstatuspolicy ignoreallfailures)
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