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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Asan.A

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Asan.A
Technical name:Perl/Asan.A.worm
Threat level:Low
Alias:Net-Worm.Perl.Asan.a
Type:Worm
Effects:  

It affects vulnerable servers affected by PHP/Santy.A.worm. It removes the vulnerability, but some functionality losses could be noticed.

Affected platforms:

Unix; Linux

First detected on:Jan. 3, 2005
Detection updated on:Jan. 4, 2005
StatisticsNo

Brief Description 

    

Asan.A is a worm that affects servers running a vulnerable version of the application phpBB that are already affected by the other worm, detected by Panda Security as PHP/Santy.A.worm.

phpBB is an open source program used to easily create bulletin boards, forums and newsgroups. Some of its versions present a vulnerability known as Remote URLDecode Input Validation.

Asan.A removes this vulnerability from the server, but this could result in a functionality loss.

Visible Symptoms 

    

Asan.A is difficult to recognize, as it does not display any messages or warnings that indicate it has reached the computer.