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Panda Protection

Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.

Hupigon.ABF

Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Hupigon.ABF
Technical name:Bck/Hupigon.ABF
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 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 downloads files from several websites. 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:July 27, 2006
Detection updated on:July 27, 2006
StatisticsNo
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 

    

Hupigon.ABF 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: 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.

 

  • In the local network: it generates a large amount of network activity and consumes bandwidth.

 

It reduces the security level of the computer: it notifies the attacker that the computer has been compromised and is ready to be used maliciously; it awaits remote-control orders received through other channels.

 

Hupigon.ABF accesses several websites to download files, which it then runs. These can be any type of file, although they are normally malware.

 

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 deletes the original file from which it was run once it is installed on the computer.

 

Hupigon.ABF 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.

 

Visible Symptoms

 

Hupigon.ABF is easy to recognize, as it shows the following symptoms:

  • It changes the homepage of Internet Explorer.