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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Encyclopedia GetVirusCard True 0

CodeRed.F

 
Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:CodeRed.F
Technical name:W32/CodeRed.F
Threat level:Low
Type:Worm
Effects:  It blocks and restarts affected computers.

Affected platforms:

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

Detection updated on:March 12, 2003
StatisticsNo

Brief Description 

    

CodeRed.F is a variant of another worm called RedCode.IIS.2, with a modification of just two bytes. Through this modification CodeRed.F  can spread until the year 34952. If the system date indicates any date after this year, instead of spreading the worm will restart the affected computer.

CodeRed.F is a worm that spreads through computer networks and which affects Index Server 2.0, Indexing Service and Internet Information Server (versions 4.0 and 5.0).

The effects of CodeRed.F are dangerous as it drops a Trojan in affected computers, which allows attackers (hacker) to gain complete control of the Web servers in a network. It can also restart and block computers by flooding their memory.

Visible Symptoms 

    

An indication that you may have been infected by CodeRed.F is computers restarting for no apparent reason.