Summary
Trojan-Downloader:W32/Agent.BUV downloads malicious files from a remote server. It then executes and installs the downloaded files.
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
Upon execution, this malware creates a copy of itself at the following location:
- %windir%\system\internat.exe
It then creates a BAT file that will be used to delete the original file executed by user. It will then create the following processes:
- %windir%\system\internat.exe
- %programfiles%\Internet Explorer\IEXPLORE.EXE
The file called internat.exe is the malware's own process. It attempts to download additional files from the following URLs:
- http://www.smsunionmm.com/107/tj.htm
- http://www.smsunionmm.com/107/tj10.htm
Note: The URLs were offline during our period of investigation.
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