Trojan-Spy applications are usually standalone programs that allow malicious individuals to monitor activity on infected computers. Trojan-Spy:Win32.Small.BSL installs a component designed to steal installed certificates.
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.
Creates the following registry entries:
It attempts to create the following registry entry:
It then drops a file into the following folder:
The dropped file is called acrobat.dll and is 51712 bytes in size.The malware sets acrobat.dll with a hidden file attribute and changes its date properties to the current system time.Small.BSL then displays the following fake/decoy dialog message:
When the dialog box is closed the malware will search for and terminate all running Internet Explorer processes. After this, it will launch Internet Explorer as a hidden process which has the malicious component attached.This malicious component acts like a Browser Helper Object (BHO).After the user has started Internet Explorer the malware will attempt to communicate with a server located at the following URL:
The BHO has the following functionality:
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Submit a Sample
Submit a file or URL for analysis.