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Risk Level 1: Very Low

September 18, 2003
February 13, 2007 12:07:31 PM
Also Known As:
PHP.Virdrus [KAV]

PHP.Virdrus is a virus that prepends itself to the .php files.

PHP.Virdrus is written in PHP. The virus runs only on servers with PHP interpreters. This virus cannot be contracted by simply visiting an infected Web page.

Antivirus Protection Dates

  • Initial Rapid Release version September 18, 2003
  • Latest Rapid Release version September 28, 2010 revision 054
  • Initial Daily Certified version September 18, 2003
  • Latest Daily Certified version September 28, 2010 revision 036
  • Initial Weekly Certified release date September 18, 2003
Click here for a more detailed description of Rapid Release and Daily Certified virus definitions.

Threat Assessment


  • Wild Level: Low
  • Number of Infections: 0 - 49
  • Number of Sites: 0 - 2
  • Geographical Distribution: Low
  • Threat Containment: Easy
  • Removal: Easy


  • Damage Level: Low


  • Distribution Level: Low
Note: On May 14, 2015, modifications will be made to the threat write-ups to streamline the content. The Threat Assessment section will no longer be published as this section is no longer relevant to today's threat landscape. The Risk Level will continue to be the main threat risk assessment indicator.
Writeup By: Asuka Yamamoto

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