According to HJT, you have Authentium AntiVirus running, some of mcafee and not AVG antivirus. The AVG you have is AVG antispyware, which is not an antivirus program, but it is compatible with antivirus programs, so keep it.
Follow DavidR's advice on removing the rest of mcafee.
If Authentium AntiVirus is working and updtaed, we'll carry on with that as your av. If not please uninstall it and install avast.
Let's get started on this.
Please download SmitfraudFix (by S!Ri) to your Desktop.
Download this ptool from:
http://siri.urz.free.fr/Fix/SmitfraudFix.exeDouble-click Smitfraudfix.exe
Select option #1 - Search by typing 1 and press "Enter"; a text file will appear, which lists infected files (if present).
Please copy/paste the content of that report into your next reply as an attachment. The report can be found at the root of the system drive, usually at C:\rapport.txt
IMPORTANT: Do NOT run any other options until you are asked to do so!
Note : process.exe is detected by some antivirus programs (AntiVir, Dr.Web, Kaspersky) as a "RiskTool";
it is not a virus, but a program used to stop system processes. Antivirus programs cannot distinguish between "good" and "malicious" use of such programs, therefore they may alert the user
Please attah the smitfraudfix and a new HJT log in your next reply. Thanks