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Virus/worm – ZyXEL Communications ZyXEL ZyWALL IDP 10 User Manual

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ZyWALL IDP 10 User’s Guide

6-6

IDP

Policies

Figure 6-6 Buffer Overflow Signatures

6.3.7 Virus/Worm

A computer virus is a small program designed to corrupt and/or alter the operation of other legitimate
programs. A worm is a program that is designed to copy itself from one computer to another on a
network. A worm’s uncontrolled replication consumes system resources thus slowing or stopping
other tasks.

To find a list of all virus/worm related signatures supported by the ZyWALL, do a policy search by
name or policy query by type (Virus/Worm). The following screen shows some of the virus/worm
related signatures supported by the ZyWALL at the time of writing.