Have you tried MalwareBytes? If you haven't then try it.
Download Malwarebytes' Anti-Malware to your desktop, check for the tool's Updates before running a scan.
http://www.malwarebytes.org/mbam.php If you can't access the above link then use this link:
http://www.download.com/Malwarebytes-Anti-Malware/3000-8022_4-10804572.html?part=dl-10804572&subj=dl&tag=button If problem persists, use combofix and show us the log.
Please download ComboFix by sUBs:
http://download.bleepingcomputer.com/sUBs/ComboFix.exe You must download it to and run it from your Desktop
Now STOP all your monitoring programs (Antivirus/Antispyware, Guards and Shields) as they could easily interfere with ComboFix.
Double click combofix.exe & follow the prompts.
When finished, it will produce a log. Please save that log and attach it in your next reply by pasting it in the "Code Snippet" or "Attach File" window.
Re-enable all the programs that were disabled during the running of ComboFix..
Note:
Do not mouse-click combofix's window while it is running. That may cause it to stall.
CF disconnects your machine from the internet. The connection is automatically restored before CF completes its run. If CF runs into difficulty and terminates prematurely, the connection can be manually restored by restarting your machine.
Best Solution: Format and Reinstall the OS. This is always better to do once your system gets effected with a Torjan/Virus/Spyware.