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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

W32/IrcBot.CXM

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:W32/IrcBot.CXM
Technical name:W32/IrcBot.CXM
Threat level:Medium
Type:Virus
Effects:   It carries out damaging actions on the affected computer. It captures certain information entered or saved by the user, with the corresponding threat to privacy. It causes the slowdown of the system, preventing planned tasks from being carried out. 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 spreads , across the Internet.
Affected platforms:

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

First detected on:June 18, 2010
Detection updated on:June 28, 2010
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

W32/IrcBot.CXM is a virus that spreads to other computers by copying its code to other files or programs.

 

It captures certain information entered or saved by the user, with the corresponding threat to privacy: user's browsing habits.

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: causes system slowdowns.

 

It reduces the security level of the computer: it terminates processes belonging to security tools, such as antivirus programs and firewalls, leaving the computer defenseless against attacks from other malware; it awaits remote-control orders received through IRC.

 

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

  • 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.

 

W32/IrcBot.CXM 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.

 

W32/IrcBot.CXM uses the following infection strategies:

  • Resident: once it has been run, the virus goes memory resident and stops functions belonging to the operating system. Therefore, every time the operating system or an application tries to access any of these functions, the virus will activate and infect new files.