Do you know what Worm.Win32.Netsky is?
Worm.Win32.Netsky is a worm that spreads itself via the Internet as an attachment to messages. Worm.Win32.Netsky sends itself to email addresses collected from the user's machine.
Worm.Win32.Netsky is activated when the user clicks on the attachment, launching and then installing and propagating itself.
Worm.Win32.Netsky displays exaggerated pop-ups, fake infection warning messages, hijacks, and often slows system performance.
Worm.Win32.Netsky Aliases: I-Worm.NetSky.x (Kaspersky Lab), W32/Netsky.w.eml!exe (McAfee), Win32.HLLM.Netsky.based (Doctor Web), Win32/Netsky.W@mm (RAV), Worm/Netsky.W.1 (H+BEDV), W32/Netsky.W@mm (FRISK), Win32.Netsky.W@mm (SOFTWIN), W32/Netsky.W.worm (Panda)
In non-techie terms: Distributors of trojans conduct illicit installation methods to extort money from you. Worm.Win32.Netsky is no different than Zlob Trojan.