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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Boys.A

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Boys.A
Technical name:W32/Boys.A.worm
Threat level:Low
Alias:Worm.Win32.Delf.ag
Type:Worm
Effects:   It spreads and affects other computers. It carries out actions that decrease the security level of the computer. It downloads files from several websites. It uses stealth techniques to avoid being detected by the user. It spreads , via mapped drives.
Affected platforms:

Windows 2003/XP/2000/NT/ME/98/95

First detected on:May 22, 2006
Detection updated on:May 23, 2006
StatisticsNo

Brief Description 

    

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

 

It reduces the security level of the computer: it terminates processes belonging to security tools, such as antivirus programs and firewalls, leaving the computer defenseless against attacks from other malware; it changes the security settings of Internet Explorer, decreasing its security level.

 

Boys.A accesses several websites to download files, which it then runs. These can be any type of file, although they are normally malware.

 

It uses stealth techniques to avoid being detected by the user:

  • It terminates processes corresponding to several security tools, such as antivirus programs and firewalls, to prevent detection.

 

Boys.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.