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Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.


Threat LevelModerate threatDamageHighDistributionNot widespread
Common name:NaviPromo
Technical name:Adware/NaviPromo
Threat level:Low
Alias:Slagent, NaviHelper, Magi,Trojan.Skintrim,
Effects:   It displays pop-up messages when it runs, distracting users and affecting productivity. It uses stealth techniques to avoid being detected by the user. It does not spread automatically using its own means.
Affected platforms:

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

First detected on:March 9, 2005
Detection updated on:June 17, 2010
Proactive protection:
Yes, using TruPrevent Technologies

Brief Description 


Adware refers to programs that display advertising using any means: pop-ups, banners, changes to the browser home page or search page, etc. The advertisements could be associated with the products or services offered by the creator of the program or by third-parties.

Adware can be installed in a number of ways, on some occasions without users' consent, and either with or without users' knowledge of its function.


It affects productivity, preventing tasks from being carried out:

  • In the affected computer: it displays pop-up windows.


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.


NaviPromo 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.
  • It is dropped or downloaded to the computer by other malware specimens, for example: Wbmediaplayer.