I've been having this issue for 3 months now and I didn't know it wasn't normal until I used Process Explorer and Virustotal detect malware processes, a lot of my Windows processes are infected on Windows 7 64bit, i have slow internet connection which I think this malware (Win64 Expiro) is hogging the network traffic, I only have one PC at this time (infected) but my school laptop is restricted and wouldn't risk downloading anit malware programs and transfer to infected PC.
Description of Win64/Expiro
Win64/Expiro is classified as a risky Trojan horse which is designed by cyber criminals to conduct a series of destructive activities to your computer and your online safety. Once infected by Win64/Expiro, your computer will become very strange. The system settings will be modified without being noticed. As a result, no matter when you start up the machine, this Trojan horse can boot up automatically. Moreover, some programs on your PC can not work anymore, which prevent you from using the computer correctly. And the disabled programs will include your antivirus program and firewall, which means that the system will become more vulnerable than before. By then, many infections like worms, browser hijackers, and rogue programs will attack the system without any effort. That is to say, the removal of Win64/Expiro will become more complicated. Furthermore, this threat threatens your security and privacy as it can collect user’s online account, password information or even system information and finally send them to a predefined remote IP address.