System Check is not new computer infection; we have already submitted posts about it many times. System Check attacks computers with vigor. We do not stop warning all our blog readers to be careful while working in the Internet. Hackers employ up-to-date rootkit techniques to affect as much computers worldwide as possible. They changes their malicious product so often, that anti-virus programs can fail to detect the virus. That is the main issue, because virus does not stay still, it tricks users in such way. As soon as it penetrates into your PC it behaves to act like the decent program which can help you to find some threats and to eliminate them. It scans your system and detects a lot of threats, but do not panic the threat list generated by the virus, all these scan reports are pre-programmed and invented. So do not take them seriously.