[Oisf-devel] {5} Suricata v0.8.0 and distance with only one previous content...

Will Metcalf william.metcalf at gmail.com
Sat Jan 2 22:28:37 UTC 2010


I will double check the behavior or snort, but in this case why
wouldn't you use a combination of depth/offset if dealing with payload
as a whole where you would use distance/within to deal with a previous
content match?

Regards,

Will

On Sat, Jan 2, 2010 at 11:10 AM, rmkml <rmkml at free.fr> wrote:
> Hi,
> After small testing, I have a new small question with this signature:
>  alert tcp any any -> any 80 (msg:"test"; content:"test"; nocase; distance:200; sid:1; rev:1;)
>
> If I start suricata:
>  ./suricata080beta -c suricata.yaml -r test.pcap --init-errors-fatal
> ...
> [15389] 2/1/2010 -- 21:48:31 - (detect.c:327) <Info> (SigLoadSignatures) -- Loading rule file: test.rules
> [15389] 2/1/2010 -- 21:48:31 - (detect-distance.c:48) <Error> (DetectDistanceSetup) -- [ERRCODE: SC_ERR_DISTANCE_MISSING_CONTENT(69)] - distance needs two preceeding content options
>
> On snort, this signature work, Im search 'test' string after beginning distance 200...
> Regards
> Rmkml
> Crusoe-Researches.com
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