[Snort-users] latest win32 binary of snort

Tom H tom at ...9643...
Mon Jul 14 13:54:04 EDT 2003


I've got the latest win32 binary for snort along with the current ruleset.
"C:\Snort\bin>snort -V
-*> Snort! <*-
Version 2.0.0-ODBC-MySQL-WIN32 (Build 72)"
and snort rules stable from "Mon Jul 14 20:19:07 2003 GMT  Works for 1.9.x  "

I'm having difficulty getting the 'established' rule to work for the 'flow' keyword. The current porn.rules file contains;
alert tcp $EXTERNAL_NET $HTTP_PORTS -> $HOME_NET any (msg:"PORN freeXXX"; content:"FREEXXX"; nocase; flow:to_client,established; classtype:kickass-porn; sid:1310; rev:5;)

however if I remove the established, then the rule alerts for pages containing FREEXXX? can anyone point me in the right direction to what might be causing that.

The init output is posted below;


Tom H

Initializing Preprocessors!
Initializing Plug-ins!
Parsing Rules file C:\snort\etc\snort.conf

Initializing rule chains...
No arguments to frag2 directive, setting defaults to:
    Fragment timeout: 60 seconds
    Fragment memory cap: 4194304 bytes
    Fragment min_ttl:   0
    Fragment ttl_limit: 5
    Fragment Problems: 0
    Self preservation threshold: 500
    Self preservation period: 90
    Suspend threshold: 1000
    Suspend period: 30
Stream4 config:
    Stateful inspection: ACTIVE
    Session statistics: INACTIVE
    Session timeout: 30 seconds
    Session memory cap: 8388608 bytes
    State alerts: INACTIVE
    Evasion alerts: INACTIVE
    Scan alerts: ACTIVE
    Log Flushed Streams: INACTIVE
    MinTTL: 1
    TTL Limit: 5
    Async Link: 0
    State Protection: 0
    Self preservation threshold: 50
    Self preservation period: 90
    Suspend threshold: 200
    Suspend period: 30
Stream4_reassemble config:
    Server reassembly: ACTIVE
    Client reassembly: ACTIVE
    Reassembler alerts: ACTIVE
    Ports: 21 23 25 53 80 110 111 143 513 1433
    Emergency Ports: 21 23 25 53 80 110 111 143 513 1433
http_decode arguments:
    Unicode decoding
    IIS alternate Unicode decoding
    IIS double encoding vuln
    Flip backslash to slash
    Include additional whitespace separators
    Ports to decode http on: 80
rpc_decode arguments:
    Ports to decode RPC on: 111 32771
    alert_fragments: INACTIVE
    alert_large_fragments: ACTIVE
    alert_incomplete: ACTIVE
    alert_multiple_requests: ACTIVE
telnet_decode arguments:
    Ports to decode telnet on: 21 23 25 119
Using LOCAL time
Conversation Config:
   KeepStats: 0
   Conv Count: 3000
   Timeout   : 60
   Alert Odd?: 0
   Allowed IP Protocols:  All

Portscan2 config:
    log: C:\snort\log/scan.log
    scanners_max: 256
    targets_max: 1024
    target_limit: 5
    port_limit: 20
    timeout: 60
21 Snort rules read...
21 Option Chains linked into 1 Chain Headers
0 Dynamic rules

Rule application order: ->activation->dynamic->alert->pass->log

        --== Initialization Complete ==--

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