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Check out our video library AppCheck defending against newest ransomware, automatic recovery and real-time backup.

  • Distribution Method : Unknown
 
  • MD5 : cf6ff9e0403b8d89e42ae54701026c1f
 
  • Major Detection Name : Ransom:MSIL/FileCoder.AD!MTB (Microsoft), Ransom.MSIL.ONYX.THEOBBB (Trend Micro)
 
  • Encrypted File Pattern : .ampkcz
 
  • Malicious File Creation Location :
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\readme.txt
     - C:\Users\%UserName%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup\svchost.url
     - C:\Users\%UserName%\AppData\Roaming\readme.txt
     - C:\Users\%UserName%\AppData\Roaming\svchost.exe
     - <Drive Letter>:\amp.exe
 
  • Payment Instruction File : readme.txt
 
  • Major Characteristics :
     - Offline Encryption
     - BiggyLocker / Chaos / Penta / Yashma Ransomware series
     - Disable system restore (vssadmin delete shadows /all /quiet, wmic shadowcopy delete, bcdedit /set {default} bootstatuspolicy ignoreallfailures, bcdedit /set {default} recoveryenabled no, wbadmin delete catalog -quiet)
     - Propagation using "<Drive Letter>:\amp.exe" file.

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