Summary
This type of trojan secretly downloads malicious files from a remote server, then installs and executes the 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
This trojan is disguised as a DOC file. Upon executing the trojan, it will download a document from a remote site (hxxp://www.epof.ru/[...]/document.doc) and display it, furthering the deception that the trojan is legitimate. Below is a screenshot of the document displayed:
In the meantime, the trojan will attempt to download malicious files from the following URLs:
- hxxp://www.epof.ru/[...]/load.php?file=0
- hxxp://www.epof.ru/[...]/load.php?file=1
- hxxp://www.epof.ru/[...]/load.php?file=2
- hxxp://www.epof.ru/[...]/load.php?file=3
- hxxp://www.epof.ru/[...]/load.php?file=4
- hxxp://www.epof.ru/[...]/load.php?file=5
- hxxp://www.epof.ru/[...]/load.php?file=6
- hxxp://www.epof.ru/[...]/load.php?file=7
- hxxp://www.epof.ru/[...]/load.php?file=8
- hxxp://www.epof.ru/[...]/load.php?file=9
- hxxp://www.epof.ru/[...]/load.php?file=uploader
- hxxp://www.epof.ru/[...]/load.php?file=grabbers
At the time of writing, the domain contacted by the malware is blocked by the Browsing Protection feature of our product.
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