This type of trojan contains one or more malicious programs, which it will secretly install and execute.
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.
Trop is a dropper that is used to encrypt malware with RC4 encryption and hide it in the resource (.rscr) section. The main purpose of this type of dropper is to hide the malware and make the file look less suspicious to scanners.The functionality is quite simple: the dropper program loads the resource, decrypts it, verifies that the decryption went fine, then executes the decrypted malware as a new process and terminates itself.Sometimes it hides suspicious API names, such as:
The RC4 key is usually 128bit and is usually located after the encrypted data.