Four tools you might want to give a try with to find the malware:
First, run RKill, which will attempt to stop any malware processes currently running. Do NOT reboot after running this.
There is always the possibility that one of those infections installed a rootkit. Start with TDSSKiller to rule out that possibility.
As RKill only terminates a program's running process, and does not delete any files, after running it you should not reboot your computer as any malware processes that are configured to start automatically will just be started again. Instead, after running RKill you should immediately scan your computer using some sort of anti-malware or anti-virus program so that the infections can be properly removed.
When running TDSSKiller, launch the program, click on the blue text "Change Parameters" & check the box marked "Detect TDLFS File system." Click OK & then run the scan.
Malwarebytes (the free version). D/L, uncheck the "start free pro trial" at the end of the installation. Do a full system scan, check anything it finds & allow it to move it to quarantine. A reboot may be required. If later you wish to buy the pro version, that features auto updates & active background scanning.
AdwCleaner is good at ferreting out adware.
Hope these programs help you find the culprit.