W32/Gimemo.AWIB!tr.ransom

Analysis

W32/Gimemo.AWIB!tr.ransom is a generic detection for a screen locker .
Below are some of its observed characteristics/behaviours:

• When this screen locker runs it will lock your screen showing some of the following infomation regarding to your computer:
• Current date of your machine
• Current time of your machine
• Name of your machine
• Your operating system
• Username
• Windows key
• Counter


• The malware will disconnect network connection after a while.
• The malware restart the machine.
• After the machine restart user will see the Fatal message:
• FATAL: No bootable medium found! System halted.


• Sceenshot of the screen locker:
  

  Figure 1: Sceenshot of the screenlocker.

  
  
• After the system restarts user will see the following Fatal message
  

  Figure 2: Fatal message after the machine restarts.

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.