After downloading and running the above file for NetCat, I noticed some strange things happening. My antivirus (Norton 360) stopped working, I could not access the C drive, I can't open regedit or msconfig, and a supsicious windows upfate has appeared. Some websites are also not allowing me to connect. I have looked in ProgramFiles (both) and ProgramData, but coildn't find anything. I can access task manager, but I didnt find anything in Processes, with 'show all user processes' enabled. Please help me, I am very worried about this. Thanks in advance! (I also am running a full system scan with malwarebytes. It syas i have to update definitons, but when i click 'fix now', it says 'cannot access update server'.)