Hi Jonathan,
Most firewalls will show many attempts to hack into your PC in their logs, but in reality, most are robots scanning for obvious vunerabilites and are not targeting you directly. The danger comes from being in a wireless LAN situation, where other users are tempted to run more vigorous scans because they are in the same range as you and can see your firewall much more easily. You can try security.symantec.com/ which is resonably thorough, especially the advanced scans that take a lot longer. Trend Micro also have a similar facility. Just remember that these websites are trying to sell you their systems, so they are a little biased. I perform the same service for my clients, using specialised software which can take overnight to run and may crash some systems, but in the end I get a full listing of all the vunerabilites across their network. There are two separate tests, (penetration testing), one that scans from outside the network and the other inside.
If you run the scans above and it comes up green then you're fine. I ran a simple scan during the week on my own WISP's network and found well more than one hundred AP's and routers, (across about fifteen sectors), and around ten PC's that were ripe for the plucking, (Computer names and version info were easily accessible). I may or may not have been able to RDP into some of these machines using default user names and passwords, (I'm not stating on a forum that I actually did this, just theoretically, if you get my drift). Nor am I saying that I was able to remotely reboot PC's and run other system commands on these machines and that's without doing any hacking at all!!, (again theoretically), so run the tests!!  |