Re: my firewall is crazy!
Quote:
Originally posted here by theyortiscool
my firewall is insain, or just im odd
so almost every hour or so, i get a ATTACK ALERT from my firewall(its norten) sayin that i have been attacked and its been blocked, should i worry about this, or is it common, and it isn't always just a person, could it be a automatic computer doin it?
I would say it is definitely an automatic attack, if indeed an attack at all. Either:
- You are genuinely being attacked, almost certainly by a worm. Almost certainly by either an IIS worm or SQL Slammer (which is dead now 99% of ISPs block it?)
or
- Your firewall is detecting legitimate traffic as an attack.
The second is fairly likely. Some of these Windoze application firewalls are amazingly paranoid by default and classify any connection as an attack unless it matches some rule for legitimate traffic. This is rediculous. A real IDS would probably not see these as attacks.
For example, a straightforward ping could be seen as an attack by your firewall, but many things legitimately ping client boxes (perhaps to determine latency)
One other thing:
Are you running P2P or have you been recently? If so then ignore *ANY* IDS. P2P vs IDS is a battle IDS cannot win.