fifteen SG If a hacker used a Trojan and infected a victim’s computer, how will the victim know? Its possible for a virus to shut down an anti virus.
ndmmxiaomayi SG As usual, it depends. 1. If the user has a registry monitor and/or hard disk monitor and it's not shut down by the trojan, the user will know. 2. If the antivirus is updated and is not killed by the trojan... then the user may know.
Shotgun SG If the Kernel is still reliable, ports that are open for no reason might indicate your computer's security has been compromised. Yes, it is possible to shut down the anti virus as well if he is able to get Administrator level access.
ndmmxiaomayi SG Good or bad, it's the one sitting in front of the PC. If a PC crashes, 99% it's the user. The other 1% - natural disaster and unforeseen circumstances.