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Check out our video library AppCheck defending against newest ransomware, automatic recovery and real-time backup.
- Distribution Method : Mail attachment file
- MD5 : 1575ea1792ec080b7825066f02a5dddc
- Major Detection Name : Ransom.Buran (Norton), Ransom.Win32.BURAN.WGN (Trend Micro)
- Encrypted File Pattern : .[<Random>-<Random>-<Random>-<Random>-<Random>]
- Malicious File Creation Location :
- C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\lsass.exe
- C:\Users\%UserName%\Desktop\!!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
- Payment Instruction File : !!! ALL YOUR FILES ARE ENCRYPTED !!!.TXT
- Major Characteristics :
- Offline Encryption
- Jumper / VegaLocker Ransomware series
- The English and German users targeted.
- Disable system restore (bcdedit /set {default} bootstatuspolicy ignoreallfailures, bcdedit /set {default} recoveryenabled no, wbadmin delete catalog -quiet, wbadmin delete systemstatebackup, wbadmin delete systemstatebackup -keepversions:0, wbadmin delete backup, wmic shadowcopy delete, vssadmin delete shadows /all /quiet)
- Initializing the Terminal Server Client Registry (reg delete "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Default" /va /f, reg delete "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Servers" /f, reg add "HKEY_CURRENT_USER\Software\Microsoft\Terminal Server Client\Servers")
- Deletes event log (wevtutil.exe clear-log Application, wevtutil.exe clear-log Security, wevtutil.exe clear-log System, sc config eventlog start=disabled)