This was the first virus that infected both DOS and Windows programs correctly.
Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.
When an infected files is executed either in DOS or Windows, the virus stays resident in memory and infects COM and EXE files when they are accessed.
Ph33r will not infect files which have the letters AN, AV or OT in their name (thus avoiding programs like SCAN, AVP, NAV, MSAV, TBAV, F-PROT...).
Ph33r virus was reported in the wild in Belgium in early 1996.
The WordMacro/Nuclear macro virus attempts to drop this virus into an infected system, but fails.