You can get this utility that will remove Combofix for you:
download OTCleanIt and save it to desktop. http://oldtimer.geekstogo.com/OTC.exe
Click the CleanUp! button.
Select Yes when the "Begin cleanup Process?" prompt appears.
If you are prompted to Reboot during the cleanup, select Yes.
The tool will delete itself once it finishes, if not delete it by yourself.
After you run it try the other link to download combofix. There are two links one can use in the guide to download combofix
You can also run TDSSkiller:
Please download TDSS Killer.zip
and save it to your desktop
Extract the zip file to your desktop
double click the utility to start it. Follow the prompts.
Please post the report.txt that will be generated in your root drive C: after its done running
After the above, check Malwarebytes for updates, scan and post its log also:
click the MBAM icon on your desktop. Once the program has loaded, click the Update tab, then check for updates. Select Scanner tab, Perform FULL SCAN, then click Scan.
When the scan is complete, click OK, then Show Results to view the results.
Be sure that everything is checked, and click **Remove Selected.**
**A restart of your computer most likely will be required to remove some items. If prompted please chose yes to restart your computer.**
When completed, a log will open in Notepad. Please save it to a convenient location. The log can also be opened by going to Start > All Programs > Malwarebytes' Anti-Malware > Logs > log-date.txt
Post the log in your reply.
1) try Combofix using the other link
2)Run TDSSkiller and post the log
3)check malwarebytes for update, scan and post its log