This was the first virus that infected both DOS and Windows programs correctly.
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.
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.