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Netsky.C

 
Threat LevelHigh threatDamageSevereDistributionNot widespread
Common name:Netsky.C
Technical name:W32/Netsky.C.worm
Threat level:Medium
Alias:W32/Netsky.c@MM, W32/Netsky-C, Win32.Netsky.C, I-Worm.Moodown.c, WORM_NETSKY.C
Type:Worm
Effects:  It deletes the entries belonging to several worms, including Mydoom.A, Mydoom.B and Mimail.T. It emits a sound through the internal speaker.

Affected platforms:

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

First detected on:Feb. 25, 2004
Detection updated on:March 6, 2006
StatisticsNo
Yes, using TruPrevent Technologies

Brief Description 

    

Netsky.C is a worm that deletes the entries that belong to several worms, including Mydoom.A, Mydoom.B and Mimail.T.

Netsky.C spreads via e-mail, through peer-to-peer (P2P) file sharing programs and across networks. When it spreads via e-mail, it reaches the computer in a message with variable characteristics.

In addition, when the system date is February 26, 2004, between 6:00 a.m. and 8:59 a.m., Netsky.C emits a sound that consists of random tones through the internal speaker.

Visible Symptoms 

    

Netsky.C is easy to recognize once it has affected the computer, as it emits a sound that consists of random tones through the internal speaker when the system date is February 26, 2004, between 6:00 a.m. and 8:59 a.m.

To hear this sound, click here.