When saving combofix to your PC, rename it to 123.com so malware won't disable it. Launch combofix (now titled 123.com), allow it to download and install the Recovery Console if it prompts you. Once the scan starts, DO NOT TOUCH YOUR PC, clicking anywhere while combofix is running is enough to make your system become non-responsive. Be forewarned that combofix will make your desktop dissapear and will also reboot your PC as needed. This is normal.
Once combofix has run, run MBAM again as well as HJT.
Going by your SAS scan, it would appear that you have a rootkit very similar to the one we just fixed. Please follow the ComboFix directions from my post above.
Once done please post new MBAM, HJT, SAS and ComboFix logs.