1. Symantec/
  2. Security Response/
  3. Perl.Lexac


Risk Level 1: Very Low

December 27, 2004
February 13, 2007 12:31:20 PM
Systems Affected:
UNIX, Windows

Perl.Lexac is a worm that spreads to Web servers running php scripts that are vulnerable to a "File Inclusion Flaw", which results from programming errors. The worm uses the Google and Yahoo search engines to obtain a list of vulnerable computers.

Note: The File Inclusion Flaw is independent from the PHP version of the server, and results from common coding mistakes.

Antivirus Protection Dates

  • Initial Rapid Release version December 27, 2004
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version December 27, 2004
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date December 29, 2004
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.
Writeup By: Robert X Wang

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2016 Internet Security Threat Report, Volume 21
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