- Distribution Method : Remote access through Remote Desktop Protocol(RDP) or Terminal Services
- MD5 : 291bfa021dc98473954d089bdc1fad35
- Major Detection Name : Trojan/Win32.Matrixran.R234829 (AhnLab V3), Generic.Ransom.Matrix.CDD86710 (BitDefender)
- Encrypted File Pattern : [SmartDen@protonmail.com].<Random>-<Random>.SDEN
- Malicious File Creation Location :
- C:\Users\%UserName%\AppData\Roaming\<Random>.bat
- C:\Users\%UserName%\AppData\Roaming\<Random>.vbs
- C:\Windows\System32\Tasks\DSHCA
- Payment Instruction File : !SDEN_INFO!.rtf
- Major Characteristics :
- Offline Encryption
- Reruns by adding "DSHCA" in Task Scheduler to disable system restore (vssadmin Delete Shadows /All /Quiet, wmic SHADOWCOPY DELETE, bcdedit /set {default} recoveryenabled No, bcdedit /set {default} bootstatuspolicy ignoreallfailures) for every 5 minutes.
- Changes desktop background (C:\Users\%UserName%\AppData\Roaming\<Random>.bmp)
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