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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

IRCBot.CUQ

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:IRCBot.CUQ
Technical name:Bck/IRCBot.CUQ
Threat level:Medium
Type:Backdoor
Effects:   It allows to gain remote access to the affected computer. It affects the productivity of the computer, the network to which it’s connected or other remote sites. It awaits remote-control orders to carry out. It uses stealth techniques to avoid being detected by the user. It spreads , across the Internet, via IRC, via mapped drives, through shared network resources, by infecting files that are then distributed.
Affected platforms:

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

First detected on:Feb. 9, 2010
Detection updated on:Feb. 9, 2010
StatisticsNo

Brief Description 

    

IRCBot.CUQ is a backdoor that allows hackers to gain remote access to the affected computer in order to carry out actions that compromise user confidentiality and impede the tasks performed on the computer.

 

It affects productivity, preventing tasks from being carried out:

  • In the affected computer: it converts the computer into a platform for taking malicious action surreptitiously: spam sending, launch of Denial of Service attacks, malware distribution, etc.
  • In the local network: it generates a large amount of network activity and consumes bandwidth.

 

It reduces the security level of the computer: it awaits remote-control orders received through IRC.

 

It uses stealth techniques to avoid being detected by the user:

  • It uses techniques included in its code to hide itself while it is active.
  • It deletes the original file from which it was run once it is installed on the computer.

 

IRCBot.CUQ uses the following propagation or distribution methods:

  • Exploiting vulnerabilities with the intervention of the user: exploiting vulnerabilities in file formats or applications. To exploit them successfully it needs the intervention of the user: opening files, viewing malicious web pages, reading emails, etc.
  • Via Internet, exploiting remote vulnerabilities: attacking random IP addresses, in which it tries to insert a copy of itself by exploiting one or more vulnerabilities.
  • IRC: It sends a copy of itself to all users connected to the channel to which the infected user is connected.
  • Computer networks (mapped drives): it creates copies of itself in mapped drives.
  • Computer networks (shared resources): it creates copies of itself in shared network resources to which it has access.
  • File infection: it infects different types of files, which are then distributed through any of the usual means: floppy disks, email messages with attachments, Internet download, files transferred via FTP, IRC channels, P2P file sharing networks, etc.