Trojan.Win32.StarField (also know as Trojan.Win32 or Trojan.Win32.Startpage.fq) used to be a real virus, now fake anti-spyware software like IE Defender will display Trojan.Win32.StarField as their scan result to trick user to buy the fake anti-spyware program. The fake anti-spyware program usually get installed onto your PC without your permission, through Trojan, malware and virus (or you could get it by installing a fake video codec). fake anti-spyware will display the Trojan.Win32.StarField fake system alerts or fake security alerts to trick user to buy the Paid Version of the fake anti-spyware program.

The possible error messages are either “Your browser was hijacked by Trojan.Win32.StarField”, or “Your browser was hijacked by Trojan.Win32.Agent.akk”. As discussed previously, these messages are completely misleading. You can safely remove Trojan.Win32.StarField by following our manual removal instructions if you are familiar with regedit and dll files. Good luck!

Download SpyHunter* Spyware Detection Utility

Manual Trojan.Win32.StarField Removal Instructions:

Unregister Trojan.Win32.StarField DLL Files:
(Learn how to do this)
windivx.dll
vipextqtr.dll
ecxwp.dll
stream32a.dll

Find and Delete these Trojan.Win32.StarField Files:
(Learn how to do this)
windivx.dll
ecxwp.dll
stream32a.dll
vipextqtr.dll
enhtb.dll
tuvttrr.dll
advpac.dll
cpwvehup.dll
gebca.dll
bkfgnqhm.dll
ddcdedd.dll
orkbobob.dll

Remove Trojan.Win32.StarField Registry Values:
(Learn how to do this)
bb5be1c92c299a1c6bcfe67655b0a0c7
40613dee6ad5fec910606c25b25262fd
1057a2dcd13130963be0a51c41dc4d1c
fe6e6a62a572e84e9eaee12eb3ee8a2b
69c9be662f7f284aae171adeb136cb24
3ba096caa45ab117721e725079cc53a1
9a9f57899a28547b04fc2da3700c95cf
7a329404de21925daacbbbee093ff6dc
2982068d063848ddb0b8029750411a84
1bc5752bd72f44f004d9f061dd7f9e00
bcf3a381bbe26d9c1ec24bac8b18f567

Download SpyHunter* Spyware Detection Utility.

Trojan.Win32.StarField Variants: Trojan.Win32, Trojan.Win32.agent.akk and Trojan.Win32.Obfuscated.gx

Source: http://www.xp-vista.com/spyware-removal/trojanwin32starfield-removal-instructions