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Jigsaw Ransomware(.hush)

  • Distribution Method : Unknown

 

  • MD5 : c168073d11a16ffb676af578b6102bfe

 

  • Major Detection Name: MSIL/Filecoder.Jigsaw.B (ESET), Ransom:MSIL/JigsawLocker.A (Microsoft)

 

  • Encrypted File Pattern : .hush

 

  • Malicious File Creation Location :

    - C:\Users\%UserName%\AppData\Local\Microsoft\RAVCpl64.exe
    - C:\Users\%UserName%\AppData\Roaming\Microsoft\RealtekDrive.exe

 

  • Major Characteristics : 오프라인 암호화(Offline Encryption), ".NET Framework Initialization Error" 가짜 오류 메시지 생성, 1시간 단위로 암호화된 파일 자동 삭제

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