Trojan-Spy:W32/Agent.BNP is a banker trojan that attacks the two-way authentication commonly used in banking systems.
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.
This trojan downloads additional configuration data from an external site. The configuration file contains information on which banks it targets as well as detailed actions that the trojan takes against a given bank. The trojan also uploads the stolen data to the external site.
Agent.BNP can inject data into banking site code, requesting for additional details or covertly changing the account data on a payment to redirect the payment to an account of the attacker's choosing.
The injection of data does not affect the SSL certificate, so the victim will not be prompted with a warning of a changed certificate.
This type of attack is known as a "man-in-the-browser" attack.