HLL is a family name - all parasitic viruses written in High Level Languages, such as Pascal, C, C++ or Basic, have been grouped under this name.
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.
There are several members, including the following viruses: HLL.3680, HLL.Pascal.3966, HLL.5150, HLL.5602.A, HLL.5602.B, HLL.Bobas, HLL.5938, HLL.Rna.7296, HLL.Rna.7408, HLL.Pascal.7808, HLL.Cookie.7360, HLL.Cookie.7392, HLL.Halloween, HLL.Antiline.
Members of the HLL family are rarely seen in the wild, but the chance of a false alarm is bigger than with viruses written in assembly language - this is because it is more difficult to find a distinct search string for these viruses.
See: HLLO, HLLC.