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/Zlob is a large family of malicious programs that download and install Spyware and Adware applications such as:
Many of these applications may also be classified as Rogueware.
Some later Zlob variants include a backdoor component which allow the attacker to manipulate the victim's PC.
Zlob itself is installed on the system by tricking the user into downloading a fake codec or protection system, such as:
Note: Most of the names above are also .com domains as well, e.g. VidCodecs.com.
The installation process creates some of these files (depends on the variant).
Based on the variant of Zlob, %DESTDIR% represents:
During installation, the following registry keys and Class IDs are created: