W32/VBKrypt.HFI!tr

Analysis

W32/VBKrypt.HFI!tr is a generic detection for a type of trojan that drops other malware onto the compromised computer. Since this is a generic detection, files that are detected as W32/VBKrypt.HFI!tr may have varying behavior.
Below are examples of some of these behavior:

• The following files are created:
  
  • undefinedAllUsersProfileundefined\explorer.exe : This is a copy of the original malware.


• Creates the following registry entry, which automatically executes its dropped copy every time the infected user logs on:
  
  • HKCU\Software\Microsoft\Windows\CurrentVersion\Run
    
    • Start WingMan Profiler = "undefinedAllUsersProfileundefined\explorer.exe"

Recommended Action

FortiGate Systems

• Check the main screen using the web interface for your FortiGate unit to ensure that the latest AV/NIDS database has been downloaded and installed on your system - if required, enable the "Allow Push Update" option.
  FortiClient Systems
  
• Quarantine/delete files that are detected and replace infected files with clean backup copies.