what is a heuristic virus?
A heuristic computer virus is a virus/program that is capable of learning while running in parallel with other computer systems on a system which it is on.For example having â¦ really good anti virus detection software running along with say five or six different other programme's virus can learn passwords usernames.ormally, for an anti-virus product to detect the virus the virus must have been seen before, analysed and detection added to the signature update files. Heuristics are used as there are some families of viruses that continually change their appearance and it is not possible to detect every variant.