Looks like you got infected with quite a few trojans as well as Virtuomondo. Ok lets get started.
First run HJT and place a checkmark next to the following.
O2 - BHO: (no name) - {3E8EC2D9-806B-4C7F-AE7F-F44AD4ABE8B5} - C:\WINDOWS\system32\mljhged.dll
O2 - BHO: (no name) - {55DB983C-BDBF-426f-86F0-187B02DDA39B} - C:\WINDOWS\system32\ydwqjduj.dll
O2 - BHO: (no name) - {C505491A-8BDB-992A-8A0F-F8ADD9BC72C0} - C:\WINDOWS\system32\gkrygjl.dll
O2 - BHO: (no name) - {E3C6619C-38DD-4842-AFD2-D13798274921} - C:\WINDOWS\system32\ddccd.dll
O4 - HKLM\..\Run: [{ZN}] C:\Documents and Settings\gabby\Local Settings\Temp\TICHD003.exe CHD003
O4 - HKLM\..\Run: [runner1] C:\WINDOWS\retadpu1000106.exe 61A847B5BBF72813329B385772FF01F0B3E35B6638993F4661AA4EBD86D67C56389B284534F310
O4 - HKLM\..\Run: [setup] rundll32.exe "C:\WINDOWS\system32\craewuwa.dll",realset
O4 - HKCU\..\Run: [Sen] "C:\WINDOWS\system32\ASKS~1\wuauclt.exe" -vt yazb
O4 - HKCU\..\Run: [Vkplrjx] "C:\Program Files\?asks\?hkntfs.exe"
O4 - Startup: TA_Start.lnk = C:\Documents and Settings\gabby\Local Settings\Temp\TICHD003.exe
O20 - Winlogon Notify: ddccd - C:\WINDOWS\system32\ddccd.dll
O20 - Winlogon Notify: mljhged - C:\WINDOWS\SYSTEM32\mljhged.dll
Now click fix checked.
Now Please download VundoFix.exe to your desktop.
- Double-click VundoFix.exe to run it.
- Put a check next to Run VundoFix as a task.
- You will receive a message saying vundofix will close and re-open in a minute or less. Click OK
- When VundoFix re-opens, click the Scan for Vundo button.
- Once it's done scanning, click the Remove Vundo button.
- You will receive a prompt asking if you want to remove the files, click YES
- Once you click yes, your desktop will go blank as it starts removing Vundo.
- When completed, it will prompt that it will shutdown your computer, click OK.
- Turn your computer back on.