Virus

JS/Nemucod.DRC!tr

Analysis



JS/Nemucod.DRC!tr is a generic detection for a JS Downloader trojan. Since this is a generic detection, malware that are detected as JS/Nemucod.DRC!tr may have varying behaviour.
Below are examples of some of these behaviours:

  • This malware spawns a powershell command line that intends to download from hxxps://aedward{Removed}.co/wp-includes/IXR/get.php? and drop it as %AppData%\[Random].exe, afterwhich it is executed. During the time of our tests the URL appears to be offline.

  • This malware is usually embedded within Word documents, below are some examples of infected document and infected mail:

    • Figure 1: Infected Document.


    • Figure 2: Infected document.


    • Figure 3: Email with Infected Document.


    • Figure 4: Infected email.




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.