Do you know what Trojan.Win32.StarField is?
Trojan.Win32.StarField or Trojan.Win32.Startpage.fq is a Trojan that is intended to lure you into purchasing whatever program they're advertising, which right now happens to be IEDefender. Now if the product they have would be a reliable program, I would not be writing this description.
Trojan.Win32.StarField comes bundled in free video codecs which are mostly used to view adult videos. Once you download the free video codec, it installs Trojan.Win32.StarField and you'll get a bogus error message similar to the examples below. Even if you press the "X" button on the error message, you'll still continue to be bombarded with messages reminding you that your system is at risk.
Trojan.Win32.StarField Fake Alert Message:
Critical System Error!
Your computer was infected by Trojan.Win32.Starfield
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)
Error!
Your browser was hijacked! Some results was changed by porn advertising! You need to clean your system immediately to prevent it. Download the newest antispyware software!
Trojan.Win32.StarField'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 Trojan.Win32.StarField's fake alert message.
Aliases: Trj/W32.Starfield (Panda), Win32/StarField.B!Trojan (Computer Associates).
In non-techie terms: Distributors of trojans conduct illicit installation methods to extort money from you. Trojan.Win32.StarField is no different than Zlob Trojan.