Snort mailing list archives

Re: Alerts including gen_id and sig_id?


From: wkitty42 () windstream net
Date: Sun, 16 Apr 2017 14:46:04 -0400

On 04/16/2017 12:42 PM, Paul Guijt wrote:
Hi All,

I have alerts like

      [**] [129:12:1] Consecutive TCP small segments exceeding threshold
[**]
      [Classification: Potentially Bad Traffic] [Priority: 2]
      04/16-07:26:27.202693 192.168.178.100:2049 -> 192.168.178.28:698
      TCP TTL:64 TOS:0x0 ID:25253 IpLen:20 DgmLen:180 DF
      ***AP*** Seq: 0x33FFC114  Ack: 0x29CB4BB5  Win: 0x6000  TcpLen: 32
      TCP Options (3) => NOP NOP TS: 1978513079 3620817

and want to deduce the related gen_id and sig_id to construct a suppress
rule.

Do I understand correctly that the '129' is (always) the gen_id and the '12'
is (always) the sig_id?

if i'm understanding your question correctly, yes, the first part is always the 
GID, the second is the SID and the third is the REV...

   GID:SID:REV


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