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LegionLocker v3.0 Ransomware (.LGNLCKD)

  • Distribution Method : Unknown
  • MD5 : cdccf5b587aac1a4aeb53f8aaa465759
  • Major Detection Name : Gen:Variant.Ransom.LegionLocker.1 (BitDefender), A variant of Win32/Packed.Themida.HTV (ESET)
  • Encrypted File Pattern : .LGNLCKD
  • Malicious File Creation Location : C:\Users\%UserName%\AppData\Local\Temp\WTHBNZD.bat
  • Payment Instruction File : LegionReadMe.txt
  • Major Characteristics :
     - Offline Encryption
     - Disable and Blocks Registry Editor (regedit), Command Prompt (cmd.exe), Task Manager (Taskmgr)
     - Kill a web browser processes (chrome, firefox, iexplore, opera)
     - Block processes execution (photorec_win.exe, qphotorec_win.exe, rannohdecryptor.exe, recuva.exe, sdclt.exe)
     - Disable system restore (vssadmin Delete Shadows /all /quiet, vssadmin resize shadowstorage /for=<Drive Letter>: /on=<Drive Letter>: /maxsize=401MB, vssadmin resize shadowstorage /for=<Drive Letter>: /on=<Drive Letter>: /maxsize=unbounded)
     - Delete backup files (*.bac, *.bak, *.bkf, *.dsk, *.set, *.VHD, *.wbcat, *.win, Backup*.*, backup*.*)