W32/LockerGoga.9FE6!tr.ransom

Analysis

W32/LockerGoga.9FE6!tr.ransom is a detection for a Ransomware trojan. Below are some of its observed characteristics/behaviours:

• This malware may drop any of the following file(s):
  
  • %Desktop%\README_LOCKED.txt : This file will serve as ransom notes.
  • %Temp%\[RandomFileName].exe : This file is a copy of the original malware itself.


• During the time of our tests this malware failed to encrypt files, but the malware does indicate that it seems trying to locate external drives, a common behaviour for Ransomware.


• The malware also moves/deletes itself after initial execution.


• Affected victims of this Ransomware are redirected by the attacker via:
  
  • SuzuMcpherson@protonmail.com
  • AsuxidOruraep1999@o2.pl


• Below is an illustration of the malware's Ransom notes and chracteristics:
  

  Figure 1: Ransom note README_LOCKED.txt.

  
  

  Figure 2: One unique feature of this malware is its presence of Digital Signature.

Recommended Action

• Make sure that your FortiGate/FortiClient system is using the latest AV database.
• Quarantine/delete files that are detected and replace infected files with clean backup copies.