HLLP is a family name - all prepending viruses written in High Level Languages, such as Pascal, C, C++ or Basic, have been grouped under this name. There are several unrelated members in the family.
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.
Variant:HLLP.3263 (Gremlin, Weed)
This virus was posted to the popular SimTel ftp site in January 1997. After that, it has been reported in the wild several times.
HLLP.3263 overwrites the beginning of the files it infects. It can sometimes be disinfected but often not - F-Secure anti-virus products will not attempt to remove it. Instead, delete infected files and reinstall them.
The code of HLLP.3263 has been compressed with LZEXE.
HLLP.3263 contains this text:
WEED - v1.0
This is a minor variant of the HLLP.3263 (Weed) virus. This version displays a starfield on the screen.
HLLP.5850 displays this text:
I need milk. My flakes toas