Trojan-Dropper:W32/Agent.PR

Classification

Category :

Malware

Type :

Trojan-Dropper

Aliases :

Trojan-Dropper:W32/Agent.PR, Trojan-Spy.Win32.Agent.pr

Summary

This type of trojan contains one or more malicious programs, which it will secretly install and execute.

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

Trojan-Dropper:W32/Agent.PR drops and executes files on the infected computer. It also creates files in the Windows directory.

On execution, this malware will drop the following files in the %system% folder

  • %system%\drivers\npf.sys - Clean
  • %system%\Packet.dll - Clean
  • %system%\WanPacket.dll - Clean
  • %system%\wpcap.dll - Clean
  • %system%\systemm.exe - Malware

Note:%system% is the C:\WINDOWS\System32 folder.

It will then execute the file SYSTEMM.EXE that is already detected as Backdoor.Win32.Agent.alh.

It will also create a batch file $$a.bat on the current directory for the sole purpose of deleting the malware dropper and the batch file itself.