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Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Ircbot.ASP

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Ircbot.ASP
Technical name:W32/IrcBot.ASP.worm
Threat level:Medium
Type:Backdoor
Effects:   It allows to gain remote access to the affected computer. It captures certain information entered or saved by the user, with the corresponding threat to privacy. It affects the productivity of the computer, the network to which it’s connected or other remote sites. It carries out actions that decrease the security level of the computer. It uses stealth techniques to avoid being detected by the user. It uses anti-monitoring techniques in order to prevent it being detected by antivirus companies. It does not spread automatically using its own means.
Affected platforms:

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

First detected on:April 28, 2007
Detection updated on:April 28, 2007
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Ircbot.ASP 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 captures certain information entered or saved by the user, with the corresponding threat to privacy: passwords saved by certain Windows services; keystrokes, in order to obtain information for accessing online banking services, passwords and other confidential information.

It sends the gathered information to a remote user by any available means: email, FTP, etc.

 

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 changes the security settings of Internet Explorer, decreasing its security level; it awaits remote-control orders received through IRC.

 

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

  • It injects itself in running processes.
  • It modifies system permissions in order to hide itself.

 

It uses several methods in order to avoid detection by antivirus companies:

  • It terminates its own execution if it detects that it is being executed in a virtual machine environment, such as VMWare or VirtualPC.

 

Ircbot.ASP does not spread automatically using its own means. It needs an attacking user's intervention in order to reach the affected computer. The means of transmission used include, among others, floppy disks, CD-ROMs, email messages with attached files, Internet downloads, FTP, IRC channels, peer-to-peer (P2P) file sharing networks, etc.

 

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