- Distribution Method : Automatic infection using exploit by visiting website
- MD5 : a4eeec442799c56c3e1aa9761661fb42
- Major Detection Name : Ransom.Eris (Malwarebytes), Ransom:Win32/Eris.PA!MTB (Microsoft)
- Encrypted File Pattern : .<5-Digit Random Extension>
- Malicious File Creation Location :
- C:\ProgramData\00000000.eky
- C:\ProgramData\00000000.ext
- C:\ProgramData\00000000.pky
- Payment Instruction File : HELP-<Encryption Extension>.txt
- Major Characteristics :
- Offline Encryption
- Block processes execution (Microsoft.Exchange.*, MSExchange*, mysqld.exe, sqlserver.exe, sqlwriter.exe)
- Disable system restore (vssadmin delete shadows /all /quiet, wmic shadowcopy delete, wbadmin delete catalog -quiet, bcdedit /set {default} bootstatuspolicy ignoreallfailures, bcdedit /set {default} recoveryenabled no)
- Interrupt file recovery using "C:\Windows\SysWOW64\cipher.exe" cipher /W:<Drive Letter>:
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