RITT is a virus written in Pascal and compressed with PKLITE 1.15. It is not common at all, but it is sometimes reported since McAfee Scan has had a false positive on it.
Scan gave an unnecessary alarm on some files packed with PKLITE 1.15. Examples of such files are DWCOMM and DWCONFIG from the Doorway package.
Disinfection & Removal
Description Created: Mikko Hypponen, F-Secure