- February 13, 2007 11:50:42 AM
The W95.Zperm.A virus is one of the first metamorphic viruses for 32-bit Windows platforms. The virus does not use traditional polymrophic encryption. Rather, it mutates its code by using jump instruction insertion. The complete virus body is permutated including the permutation engine itself. A variant known as W95.Zperm.B is known to exist.
Antivirus Protection Dates
Initial Rapid Release version June 29, 2000
Latest Rapid Release version June 29, 2000
Initial Daily Certified version June 29, 2000
Latest Daily Certified version June 29, 2000
Initial Weekly Certified release date pending
Click for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Peter Szor