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VegaLocker Ransomware (<Original Filename>.<Original Extension> / Your files are now encrypted.txt)

  • Distribution Method : Unknown
  • MD5 : 77487c27f5476f7bcb092106f4845b4f
  • Major Detection Name : Trojan.Ransom.VegaLocker (ALYac), A Variant Of Win32/Filecoder.Buhtrap.C (ESET)
  • Encrypted File Pattern : <Original Filename>.<Original Extension>
  • Payment Instruction File : Your files are now encrypted.txt
  • Major Characteristics :
     - Offline Encryption
     - Buran Ransomware series
     - The Russian users targeted
     - Disable and Blocks Registry Editor (regedit.exe) and Task Manager (Taskmgr.exe)
     - Block processes execution (msaccess.exe, msftesql.exe, mysqld.exe, oracle.exe, sqlservr.exe, sqlwriter.exe etc.)
     - 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\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)