1. Open the Browser and check your proxy settings to make sure it has not been changed by the Trojans.
Internet Properties > Connections > LAN Settings > Proxy server
2. Download ComboFix.Exe from
http://www.techsupportforum.com/sectools/sUBs/ComboFix.exe or
http://download.bleepingcomputer.com/sUBs/ComboFix.exe
3. Follow the prompts. When finished, it shall produce a log for you.
Note: Do not open any other program and let the software run now. That may cause ComboFix to stall.
4. Download FixIEDef from http://downloads.malwareteks.com/FixIEDef.exe
5. Download Malwarebytes’ Anti-Malware from http://www.malwarebytes.org/mbam.php, Install and run select “Perform Quick Scan”, then click Scan.
6. Download Avast! Free AntiVirus, Install and do Quick Scan.
Hope this helps!!!