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Ouroboros Ransomware (.[ID=<Random>][Mail=DecrypterSupport@protonmail.com].Lazarus)

  • Distribution Method : Unknown
 
  • MD5 : 175418ae583cab2b0c9debc504f323d5
 
  • Major Detection Name : DeepScan:Generic.Ransom.Ouroboros.C7DB7BDE (BitDefender), Ransom.Win32.OUROBOROS.SM (Trend Micro)
 
  • Encrypted File Pattern : .[ID=<Random>][Mail=DecrypterSupport@protonmail.com].Lazarus
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Read-Me-Now.txt
     - C:\ProgramData\info.txt
     - C:\ProgramData\uiapp.exe
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\Read-Me-Now.txt
 
  • Payment Instruction File : Read-Me-Now.txt
 
  • Major Characteristics :
     - Offline Encryption
     - Zeropadypt Ransomware series
     - Block processes execution (msftesql.exe, mysqld.exe, mysqld-nt.exe, sqlagent.exe, sqlserver.exe, sqlwriter.exe etc.)
     - Disable system restore (vssadmin delete shadows /all /y)

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