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Virus Encyclopedia

Welcome to the Virus Encyclopedia of Panda Security.


Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Netsky.X
Technical name:W32/Netsky.X.worm
Threat level:Medium

It launches denial of service attacks against several websites between April 28 and 30, 2004. It spreads via e-mail.

Affected platforms:

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

First detected on:April 20, 2004
Detection updated on:Aug. 10, 2009
Proactive protection:
Yes, using TruPrevent Technologies
Repair utility:Panda QuickRemover

Brief Description 


Netsky.X is a worm that launches Denial of Service attacks (DoS) against several websites between April 28 and 30, 2004, inclusive.

In addition, Netsky.X spreads via e-mail in a message with variable characteristics. Depending on the e-mail domain extension of the recipient, the message will be written in a different language.

Visible Symptoms 


Netsky.X is difficult to recognize, as it does not display any messages or warnings that indicate it has reached the computer.