Trojan.Cidox Activity Removal - How to Remove Trojan.Cidox Activity

Am I Really Infected with Trojan.Cidox Activity?

Once open my computer, there are some strange things happen;

1. CPU is extremely consumed with few program running in the background and many more processes are duplicate.
2. Trojan.Cidox Activity makes itself a member of auto-run items at each reboot;
3. Slow computer 
4. Unwanted computer shut down.