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Lineage.KFS

Threat LevelLow threatDamageHighDistributionNot widespread
Common name:Lineage.KFS
Technical name:W32/Lineage.KFS
Threat level:Medium
Type:Virus
Effects:  It carries out damaging actions on the affected computer.It searches for and steals passwords saved for certain Windows services.It uses stealth techniques to avoid being detected by the user.It spreads , 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. 30, 2008
Detection updated on:April 27, 2010
StatisticsNo
Yes, using TruPrevent Technologies

Brief Description 

    

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

 

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

 

It uses stealth techniques to avoid being detected by the user:

  • It terminates processes corresponding to several security tools, such as antivirus programs and firewalls, to prevent detection.
  • It deletes the original file from which it was run once it is installed on the computer.
  • It modifies system permissions in order to hide itself.

 

Lineage.KFS 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.
  • 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.

 

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