Anti-Virus Technical Reference - ZyXEL Communications ZyWALL USG 300 User Manual

Chapter 30 Anti-Virus
Table 148 Anti-X > Anti-Virus > Signature (continued)
LABEL
Total
Signature
signatures
per page
Page x of x
Name
ID
Severity
Category

30.7 Anti-Virus Technical Reference

Types of Computer Viruses
The following table describes some of the common computer viruses.
Table 149 Common Computer Virus Types
TYPE
File Infector
Boot Sector
Virus
Macro Virus
508
DESCRIPTION
This is the number of signatures that matched your search criteria.
Select how many entries you want to display on each page.
This is the number of the page of entries currently displayed and the
total number of pages of entries. Type a page number to go to or use
the arrows to navigate the pages of entries.
This is the name of the anti-virus signature. Click the Name column
heading to sort your search results in ascending or descending order
according to the signature name.
Click a signature's name to see details about the virus.
This is the IDentification number of the anti-virus signature. Click the ID
column header to sort your search results in ascending or descending
order according to the ID.
This is the severity level of the anti-virus signature. Click the severity
column header to sort your search results by ascending or descending
severity.
This column displays whether the signature is for identifying a virus or
spyware. Click the column heading to sort your search results by
category.
DESCRIPTION
This is a small program that embeds itself in a legitimate program. A
file infector is able to copy and attach itself to other programs that are
executed on an infected computer.
This type of virus infects the area of a hard drive that a computer
reads and executes during startup. The virus causes computer crashes
and to some extend renders the infected computer inoperable.
Macro viruses or Macros are small programs that are created to
perform repetitive actions. Macros run automatically when a file to
which they are attached is opened. Macros spread more rapidly than
other types of viruses as data files are often shared on a network.
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