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 detection database 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/Lipler.gen is the Generic Detection of an unsigned installer program that comes packaged together with such programs as Live-Player and Speed-Downloading. Packaging the installer this way is sometimes used to avoid detection of an unwanted program by the user. Upon installation, the installer will download a file from this server:
and drop the files mainly on the following folders:
It will also change the web browser's starting page. The installer has support for various major languages.
The following is an example of the installer's activities, based on one of the samples submitted.The trojan-downloader downloads files from:
The installer then installs the files on the system, using the following name format:
The installer then makes the following registry changes: