The Internet threat alert status is currently normal. At present, no major epidemics or other serious incidents have been recorded by Kaspersky Lab’s monitoring service. Internet threat level: 1


Detected Feb 13 2010 14:44 GMT
Released Feb 13 2010 18:38 GMT

There is currently no description for this program

If you’d like to find out more about how programs of this type function, please read about the general behavior of programs in the same class or sub-class (see right).

Because many programs of this type are slight modifications of older versions, the descriptions for these older versions may be of interest. Links to any available descriptions are displayed under the general description on the right of the screen.

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Backdoors are designed to give malicious users remote control over an infected computer. In terms of functionality, Backdoors are similar to many administration systems designed and distributed by software developers.

These types of malicious programs make it possible to do anything the author wants on the infected computer: send and receive files, launch files or delete them, display messages, delete data, reboot the computer, etc.

The programs in this category are often used in order to unite a group of victim computers and form a botnet or zombie network. This gives malicious users centralized control over an army of infected computers which can then be used for criminal purposes.

There is also a group of Backdoors which are capable of spreading via networks and infecting other computers as Net-Worms do. The difference is that such Backdoors do not spread automatically (as Net-Worms do), but only upon a special “command” from the malicious user that controls them.

Other versions


Backdoor.Win32.Hupigon.jwsy (Kaspersky Lab) is also known as:

  • Trojan: Generic BackDoor!csq (McAfee)
  • unpack error (Nod32)
  • Backdoor.Hupigon.KCOR (VirusBuster)
  • Win32:Malware-gen (AVAST)
  • Backdoor.Win32.Shark (Ikarus)
  • BackDoor.Hupigon5.BARB (AVG)
  • BDS/Hupigon.jwsy (AVIRA)
  • W32/Suspicious_Gen2.AKZHU (Norman)
  • Trojan.Win32.Generic.5203A31E (Rising)
  • Backdoor.Win32.Hupigon.jwsy [AVP] (FSecure)
  • Backdoor.Hupigon.KCOR (VirusBusterBeta)