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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Mydoom.R

Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Mydoom.R
Technical name:W32/Mydoom.R.worm
Threat level:Medium
Alias:Coco.A
Type:Worm
Effects:  

It opens several ports, installs a backdoor and prevents from accessing several web pages.

Affected platforms:

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

First detected on:Aug. 16, 2004
Detection updated on:Aug. 16, 2004
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Mydoom.R is a worm that opens several ports and listens to them. It allows hackers to remotely access the computer, in order to carry out actions that compromise user confidentiality or impede the tasks performed.

Additionally, Mydoom.R prevents the user from accessing the websites belonging to several antivirus companies.

Mydoom.R reaches the computer in an e-mail message with the subject photos and an attached file called PHOTOS_ARC.EXE. When the attached file is run, Mydoom.R downloads and runs the backdoor detected by Panda Security as Bck/Surila.B.

 

Panda Security's TruPreventTM Technologies detected and successfully blocked Mydoom.R, without prior knowledge of the malicious code.

Visible Symptoms 

    

Mydoom.R is easy to recognize, as it reaches the computer in an e-mail with the following characteristics:

  • Subject:
    photos
  • Message:
    LOL!;))))
  • Attachments:
    PHOTOS_ARC.EXE