Active Scan. Scan your PC free
Download Cloud Antivirus Gratis

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.


Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Botware.A
Technical name:W32/Botware.A.worm
Threat level:Medium
Effects:   It spreads and affects other computers. It captures certain information entered or saved by the user, with the corresponding threat to privacy. It causes the loss of information stored on the computer, either specific files or data in general. It affects the productivity of the computer, the network to which it’s connected or other remote sites. It carries out actions that decrease the security level of the computer. It spreads , via mapped drives.
Affected platforms:

Windows 2003/XP/2000/NT/ME

First detected on:March 25, 2006
Detection updated on:March 25, 2006
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 


Botware.A is a worm that spreads by copying itself, without infecting other files.


Botware.A prevents access from programs to websites of several companies related with security tools (antivirus programs, firewalls, etc.).

Botware.A redirects attempts to access web pages of certain banks to spoofed pages, with the aim of logging information entered by the user in these pages.

Botware.A redirects attempts to access several web pages to a specific IP address.


Botware.A uses the following propagation or distribution methods:

  • Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.
  • Computer networks (mapped drives): it creates copies of itself in mapped drives.