[Snort-users] Suppress not suppresing all alerts for specific gen_id, only a few.

Agus agus.262 at ...11827...
Wed Jun 12 09:46:59 EDT 2013


Hi guys,

Here are the tests... any help is appreciated.

snort -V

   ,,_     -*> Snort! <*-
  o"  )~   Version 2.9.4.6 GRE (Build 73)
   ''''    By Martin Roesch & The Snort Team:
http://www.snort.org/snort/snort-team
           Copyright (C) 1998-2013 Sourcefire, Inc., et al.
           Using libpcap version 1.3.0
           Using PCRE version: 6.6 06-Feb-2006
           Using ZLIB version: 1.2.3


+-----------------------[filtered
events]--------------------------------------
| gen-id=1      sig-id=2014726    type=Limit     tracking=src count=1
seconds=60  filtered=4
| gen-id=119    sig-id=31         type=Suppress  tracking=none filtered=54
| gen-id=119    sig-id=19         type=Suppress  tracking=none filtered=337
| gen-id=119    sig-id=32         type=Suppress  tracking=none filtered=69
| gen-id=120    sig-id=8          type=Suppress  tracking=none filtered=129
| gen-id=120    sig-id=6          type=Suppress  tracking=none filtered=18
| gen-id=120    sig-id=3          type=Suppress  tracking=none filtered=114
Snort exiting
[snort01 snort]# cat alert|grep "138:5"|wc -l
492
[snort01 snort]# rm alert


Now i apply the suppress

+-----------------------[filtered
events]--------------------------------------
| gen-id=1      sig-id=2014726    type=Limit     tracking=src count=1
seconds=60  filtered=4
| gen-id=119    sig-id=32         type=Suppress  tracking=none filtered=69
| gen-id=119    sig-id=19         type=Suppress  tracking=none filtered=337
| gen-id=119    sig-id=31         type=Suppress  tracking=none filtered=54
| gen-id=120    sig-id=6          type=Suppress  tracking=none filtered=18
| gen-id=120    sig-id=3          type=Suppress  tracking=none filtered=114
| gen-id=120    sig-id=8          type=Suppress  tracking=none filtered=129
| gen-id=138    sig-id=5          type=Suppress  tracking=none filtered=419
Snort exiting
[snort01 snort]# cat alert|grep "138:5"|wc -l
63


Also its worth mentioning that all alerts regarding
[**] [138:5:1] SENSITIVE-DATA Email Addresses [**] are all false positives
as information shown in the pcap is encrypted.

Thanks!
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