Alright, here's the scoop. I think my computer is infected with some kind of backdoor trojan or worm.
The symptoms: Computer will freeze for a few seconds every few minutes, making typing and moving the mouse around very annoying. The mouse will "jump" on the screen, making it difficult to click on much of anything. It doesn't seem to do this all of the time, but when it does act up, it is very frustrating. Windows Explorer or Chrome will pop up out of nowhere, even though I am using Firefox. I have Explorer and Chrome installed as well, but a new window will pop up even though I did not open one. My CPU seems to be cranking up a lot lately and isn't able to handle video processing like it used to, but the computer is a couple of years old and may just need updating.
Computer Info: This computer is a Windows 7 Home Premium, 64 bit. I'm not sure if you need to know my processor and all that, but I can tell you if you do.
Possibilities: My husband likes to install a lot of MMORPG's and try them out. I'm concerned that he may have downloaded malicious files in the process. We have noticed that these things started getting worse when we installed Spotify to play music. We have since uninstalled it, but the problems still persist.
I have run several anti-virus and anti-malware scans (Microsoft Security Essentials and MalwareBytes) but they didn't show any abnormalities.
Thanks in advance for all of your help and just let me know what else you need.
Edited by rouschel, 13 July 2014 - 07:51 AM.