Trojan:W32/Sacom.A

Classification

Category :

Malware

Type :

Trojan

Aliases :

Trojan:W32/Sacom.A

Summary

Trojan:W32/Sacom attempts to contact remote servers.

Removal

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    Note: If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note: You need administrative rights to change the settings.

Technical Details

This trojan attempts to contact the following domains:

  • jsactivity.com
  • bfkq.com
  • https://cnwebmastersblog.com/xabc/2.0/
  • https://74.54.89.66/p0821/2.0/
  • https://74.54.201.210/p0821/2.0/
  • https://174.133.147.18/p0821/2.0/
  • 74.54.201.210
  • 74.55.37.210
  • 74.54.89.66
  • 174.133.126.2

The trojan is most probably attempting to download additional malware, or act as a silent advertisement clicker.

Registry

The trojan adds the following values to the registry.

  • HKLM
  • HKLM\SOFTWARE\Microsoft\WBEM

These registry valued are encoded characters.

File System Changes

Creates these files:

  • %windir%\system32\comsa32.sys
  • %windir%\Documents and Settings\[Username]\Local Settings\Temp\mta[Random Number].dll