I had one bug that kept popping up like it was an antivirus program, took me about 2-3hours one morning but finally found a program malwarebytes that downloaded and installed even with that pain in the butt bug. It ran its scan and did a good job of cleaning it up. the malwarebytes download was free, and didn't give me any other side effect issues. here is the link to their site if you want to try it
Malwarebytes.org.