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.
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