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Re: sid in .rules
From: waldo kitty <wkitty42 () windstream net>
Date: Sat, 11 May 2013 11:45:14 -0400

On 5/11/2013 10:47, Balla István wrote:
how can i find which rule sid: *1324* resides in?
it s not a preproc rule. should be under /snort/rules/ but cannot find in
exploit.rules...

depending on your snort and the rules set used, it is in exploit.rules or 
indicator-shellcode.rules...

i've posted numerous times a nice sid lookup script that walks all of your 
.rules files and displays the results... here it is one more time...


#! /bin/bash
# lookuprule bash script to find snort rules by sid
grep -i -E "sid:\W*$1;" /path/to/your/snort/*rules*/*.rules


just change '/path/to/your/snort/' to point to the directory which holds your 
rules directories (see below) so that *rules* can search each of those rules 
directories...

to convert this to a winwhatever bat file, add "rem " in front of the first two 
comment lines and change "$1" to "%1"... the only other item needed is a working 
grep for the winwhatever environment...

by having such a quick and easy to use tool, one doesn't have to remember the 
proper command line inkantachuns and majikal spells to search their rules for a 
specific SID...

the above will also find 3:1324 from the so_rules in so_rules/ and possibly even 
point you to 129:1324 if it exists in a preprocessor rules file in preproc_rules/...

my rules tree looks like this...

/path/to/snort/
/path/to/snort/preproc_rules/
/path/to/snort/rules/
/path/to/snort/so_rules/


HtH

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