This type of trojan secretly downloads malicious files from a remote server, then installs and executes the files.
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.
Trojan-Downloader:W32/Small identifies one of more than 370 variants (as of June 28 2004) in this large malware family. The main characteristics of these programs are:
Many variants are compressed (bya variety of file compressor programs) to reduce their size and hide their contents from the user.
Some Small variants download adware, spyware and searchware (third-party search plugins); others download trojans and backdoors.
Small variants are often silently installed on a user's system via a driveby download when the user visits a malicious website.