Do you know what Worm.Win32.Sober is?
Worm.Win32.Sober is a relentless malware infection, a variant of Trojan.Win32 and Trojan.Win32.agent.akk, that can be found in several bogus video codecs used to view video files, especially with adult content. Worm.Win32.Sober is not a virus by itself, however it distributes rogue anti-spyware programs such as IEDefender.
Worm.Win32.Sober bombards your computer with deceptive warning messages stating that your computer was infected by Worm.Win32.Sober and that it's dangerous for your system. Worm.Win32.Sober's incessant fake warning messages are intended to trick you into purchasing a full version of the rogue anti-spyware application. Once you click on the fake alert message, you will be directed to IEDefender's home site where you get the commercial version of this rogue anti-spyware application.
Worm.Win32.Sober Fake Alert Message:
Critical System Error!
Your computer was infected by Worm.Win32.Sober It's dangerous for your system, some files can be lost and your browser can be slow!
Click OK to download the antispyware program to clean your computer! (Recommended)
Worm.Win32.Sober's error message is a crafty and scary approach that ultimately has you convinced that you have a spyware problem and that you need to download their rogue anti-spyware program. Do not fall under the trojan makers' tricks and do not download any program recommended on Worm.Win32.Sober's fake alert message.
In non-techie terms: Distributors of trojans conduct illicit installation methods to extort money from you. Worm.Win32.Sober is no different than Zlob Trojan.