Ransomware Research

SatanCryptor Go Ransomware

SatanCryptor Go is a malicious ransomware strain that encrypts victim files and demands ransom payment for decryption. First observed in the wild on October 1, 2019, this ransomware has been actively targeting systems worldwide. Security researchers also track this malware under the aliases: M0rphine, Session.

Quick Facts

Ransomware Family
SatanCryptor Go
First Seen
October 1, 2019
Known Aliases
M0rphineSession

How SatanCryptor Go Ransomware Works

Targeted Files

Full extension of encrypted files -> '#_THIS_FILE_IS_ENCRYPTED_[<random{16}>]-[ID-<id{32}>-[EMAIL-<email_ransom>].satan' [svmst@cock.li]x48dnm.RLIBVHNVQJF4M45HHL4CKAKQBCUOQVIOK1I0BYMM.session Encrypts first 0x20000 bytes

File Encryption Patterns

SatanCryptor Go modifies encrypted files using specific patterns to mark them as encrypted:

File extensions added after encryption:

..satan..M0rphine..session

Ransom Note and Payment Demands

After encrypting files, SatanCryptor Go displays ransom notes demanding payment for file recovery:

file# SATAN CRYPTOR #.hta

Ransom message:

notes/# SATAN CRYPTOR #.hta

Note locations:

EveryFolder
file# M0rphine Help #.hta

Ransom message:

notes/# M0rphine Help #.hta

Note locations:

EveryFolder
file_ÈçºÎ½âÃÜÎÒµÄÎļþ_.txt

Ransom message:

notes/_ÈçºÎ½âÃÜÎÒµÄÎļþ_.txt

Note locations:

RootDiscs

Technical Indicators

Associated Executable Files

The following executable files are associated with SatanCryptor Go ransomware:

  • 2019-12-18.exe
  • mor.exe
  • svchost.exe

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About This Analysis

This SatanCryptor Go ransomware analysis is part of Elastio's comprehensive ransomware detection database. Elastio provides advanced ransomware protection and recovery solutions, helping organizations defend against and recover from ransomware attacks like SatanCryptor Go.

Last updated: July 30, 2025

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