- Distribution Method : Mail attachment file
- MD5 : 06a28702d2b3d45a8ae80ced6f05cf25
- Major Detection Name : Trojan.Ransom.Nemty (ALYac), Troj/Nemty-D (Sophos)
- Encrypted File Pattern : ._NEMTY_<7-Digit Random>_
- Malicious File Creation Location :
- C:\Users\%UserName%\AdobeUpdate.exe
- C:\Users\%UserName%\_NEMTY_<7-Digit Random>_-DECRYPT.txt
- Payment Instruction File : _NEMTY_<7-Digit Random>_-DECRYPT.txt
- Major Characteristics :
- Offline Encryption
- Checking IP address (api.db-ip.com)
- Block processes execution (excel.*, onenote.*, oracle.*, outlook.*, sql.*, thunderbird.* etc.)
- Stop multi services (AcronisAgent, AcrSch2Svc, Apache2.4, DbxSvc, OracleServiceXE, OracleXETNSListener etc.)
- Disable system restore (vssadmin.exe delete shadows /all /quiet, vssadmin resize shadowstorage /for=<Drive Letter>: /on=<Drive Letter>: /maxsize=401MB, vssadmin resize shadowstorage /for=<Drive Letter>: /on=<Drive Letter>: /maxsize=unbounded, bcdedit /set {default} bootstatuspolicy ignoreallfailures, bcdedit /set {default} recoveryenabled no, wbadmin delete catalog -quiet, wmic shadowcopy delete)
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