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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Encyclopedia GetVirusCard True 0

Sdbot.N

 
Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Sdbot.N
Technical name:Bck/Sdbot.N
Threat level:Medium
Type:Trojan
Subtype: Backdoor
Effects:  It connects to an IRC channel and carries out actions as redirecting and scanning ports, downloading and running files, launching denial of service attacks and sending the backdoor via IRC.

Affected platforms:

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

Detection updated on:Oct. 20, 2003
StatisticsNo

Brief Description 

    

Sdbot.N is a backdoor that has been massively sent in an e-mail message with the subject Microsoft Security Update and the attachment MS03-047.EXE. The message tricks the user into thinking that it comes from Microsoft.

When the attached file is run, Sdbot.N goes memory resident and connects to an IRC channel.

Sdbot.N receives remote control commands via IRC in order to carry out the following actions, among others: redirect ports, download and run files, scan ports, update the backdoor, launch denial of service (DoS) attacks and send the backdoor to other IRC channels.

Visible Symptoms 

    

Sdbot.N is easy to recognize, as it shows the following symptoms:

  • It has been massively sent in an e-mail message that has the following characteristics:
    Sender:
    Microsoft

    Subject:
    Microsoft Security Update

    Attachments:
    MS03-047.EXE
  • The attached file has the following icon:

  • When the attached file is run for the first time, it displays the following error message: