Resident viruses contain a replication module that is similar to the one that is employed by nonresident viruses. However, this module is not called by a finder module. Instead, the virus loads the replication module into memory when it is executed and ensures that this module is executed each time the operating system is called to perform a certain operation. For example, the replication module can get called each time the operating system executes a file. In this case, the virus infects every suitable program that is executed on the computer.
There are two types:
Fast Infectors
and
Slow Infectors
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by qazwsx2 
last modified: 2006-08-11 01:24:49 |
