I have two devices, Windows 7 professional and Windows Vista, that I cannot ping or see system shares on after a possible virus infection. The Windows 7 device hosts a shared database application that others in the office connect to. I ran malwarebytes and found a few things, but nothing that seems to be the cause. I can get on the internet, go to windows updates, and malwarebytes, avast, avg, etc websites and nothing seems obvious except that I cannot ping (to or from) these two machines. The machines run normally except maybe a little slow. They were working fine until yesterday afternoon.... I am attaching a Hijack This file..