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.
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.