local codered infection

[<bthaler () webstream net>]

Is anyone using a snort rule to detect *local* infections of codered, nimda,
etc?

I tried:
alert tcp x.x.x.x any -> any 80 (msg:"***LOCAL CODERED INFECTION***";
content:"/cmd.exe"; nocase;)

but this doesn't seem to work.

I tested it by trying to access www.yahoo.com/cmd.exe, which should throw a
false positive.

Is my testing flawed, or the rule, or both?





Sincerely,

Brad T.


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