[Snort-users] preprocessor's rules???

Justin Heath justin.heath at ...11827...
Tue Apr 15 08:35:40 EDT 2008


They are stub rules that control the alerting functionality of
preprocessor alerts. So, for example ...


alert ( msg: "STREAM5_DATA_WITHOUT_FLAGS"; sid: 11; gid: 129; rev: 1;
metadata: rule-type preproc ; classtype:protocol-command-decode; )

Would enable the alerting of the stream5 without flags alert.

Each alerting preproc should have a readme which describes the alerts
associated with it. In addition the gen-msg.map should give you a list
if preprocessor gids along with their associated sids.


Cheers,
Justin



On Tue, Apr 15, 2008 at 1:36 AM, Rachmat Hidayat Al-Anshar
<rachmat_hidayat_02 at ...131...> wrote:
> Hi all.... :)
>
> I just want to know more about this following line on
> snort configurations file..
> var PREPROC_RULE_PATH ../preproc_rules
>
> what is preprocessor rules are??
> and then, since I know that Snort's preprocessor only
> use plug-ins for its
> process, is it something that I missed about this
> "rules" for preprocessor...
>
> Any response supporting this question will greatly
> appreciated
> Thanks in advance
> Rachmat Hidayat Al Anshar
>
>
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