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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

PayClicker.FN

Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:PayClicker.FN
Technical name:Trj/PayClicker.FN
Threat level:Medium
Type:Trojan
Effects:   It allows to get into the affected computer. It affects the productivity of the computer, the network to which it’s connected or other remote sites. It changes the security settings of Internet Explorer. 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:Jan. 6, 2008
Detection updated on:Jan. 6, 2008
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

PayClicker.FN is a Trojan, which although seemingly inoffensive, can actually carry out attacks and intrusions.

 

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

 

It affects productivity, preventing tasks from being carried out:

  • In the affected computer: it displays pop-up windows.
  • 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 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 injects itself in running processes.

 

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

  • It prevents scanning tools from running, such as Windows Registry Editor, FileMonitor, etc.
  • Its code is encrypted and it is only decrypted when it is going to run. Because of this, its code is not legible through a memory dump.

 

PayClicker.FN 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.