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.
Depending on the settings of your F-Secure security product, it will either automatically delete, quarantine or rename the suspect file, or ask you for a desired action.
More information on the scanning and removal options available in your F-Secure product can be found in the Help Center.
You may also refer to the Knowledge Base on the F-Secure Community site for more information.
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