Threat Description



Category: Malware
Platform: W32
Aliases: HLLT


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.


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More scanning & removal options

More information on scanning or removal options is available in the documentation for your F-Secure security product on the Downloads section of our Home - Global site.

You may also refer to the Knowledge Base on the F-Secure Community site for more information.

Contact Support

For further assistance, F-Secure customers can request support online via the Request support or the Chat forms on our Home - Global site.

Technical Details

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  

Description Details: Mikko Hypponen, F-Secure


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