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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Banker.KYY

Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:Banker.KYY
Technical name:Trj/Banker.KYY
Threat level:Low
Type:Trojan
Effects:   It allows to get into the affected computer. It captures certain information entered or saved by the user, with the corresponding threat to privacy. It generates a large amount of network traffic activity with the consequent consumption of bandwidth. It carries out actions that decrease the security level of the computer. It uses stealth techniques to avoid being detected by the user. It does not spread automatically using its own means.
Affected platforms:

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

First detected on:May 8, 2008
Detection updated on:May 8, 2008
StatisticsNo

Brief Description 

    

Banker.KYY 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: passwords saved by certain Windows services.

It sends the gathered information to a remote user by any available means: email, FTP, 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 terminates processes belonging to security tools, such as antivirus programs and firewalls, leaving the computer defenseless against attacks from other malware; it changes the security settings of Internet Explorer, decreasing its security level; it notifies the attacker that the computer has been compromised and is ready to be used maliciously; it changes system permissions, decreasing the 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 terminates processes corresponding to several security tools, such as antivirus programs and firewalls, to prevent detection.
  • It modifies system permissions in order to hide itself.

 

Banker.KYY 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.