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Virus Encyclopedia

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Autorun.JND

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Autorun.JND
Technical name:W32/Autorun.JND
Threat level:Medium
Type:Virus
Effects:  It carries out damaging actions on the affected computer.It generates a large amount of network traffic activity with the consequent consumption of bandwidth.It changes the security settings of Internet Explorer.It uses stealth techniques to avoid being detected by the user.It spreads , across the Internet, via mapped drives, through shared network resources, by infecting files that are then distributed.
Affected platforms:

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

First detected on:Nov. 9, 2009
Detection updated on:Nov. 9, 2009
StatisticsNo
Yes, using TruPrevent Technologies

Brief Description 

    

Autorun.JND is a virus that spreads to other computers by copying its code to other files or programs.

 

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

 

Autorun.JND 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.
  • Computer networks (mapped drives): it creates copies of itself in mapped drives.
  • Computer networks (shared resources): it creates copies of itself in shared network resources to which it has access.
  • File infection: it infects different types of files, which are then distributed through any of the usual means: floppy disks, email messages with attachments, Internet download, files transferred via FTP, IRC channels, P2P file sharing networks, etc.

 

Autorun.JND 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.