Thanks.
But don't work. It only decode srcip field. Attach the output:
**Phase 1: Completed pre-decoding.
full event: 'WinEvtLog: Security: AUDIT_FAILURE(5152):
Microsoft-Windows-Security-Auditing: (no user): no domain: WK034.dom.com:
The Windows Filtering Platform blocked a packet. Application Information:
Process ID: 0 Application Name: - Network Information: Direction: %%14592
Source Address: 10.20.10.55 Source Port: 55666 Destination Address:
255.255.255.255 Destination Port: 1234 Protocol: 17 Filter Information:
Filter Run-Time ID: 70713 Layer Name: %%14597 Layer Run-Time ID: 13'
hostname: 'USMCyberRange'
program_name: '(null)'
log: 'WinEvtLog: Security: AUDIT_FAILURE(5152):
Microsoft-Windows-Security-Auditing: (no user): no domain: WK34.dom.com:
The Windows Filtering Platform blocked a packet. Application Information:
Process ID: 0 Application Name: - Network Information: Direction: %%14592
Source Address: 10.20.10.55 Source Port: 55666 Destination Address:
255.255.255.255 Destination Port: 1234 Protocol: 17 Filter Information:
Filter Run-Time ID: 70713 Layer Name: %%14597 Layer Run-Time ID: 13'
**Phase 2: Completed decoding.
decoder: 'windows'
srcip: '10.20.10.55'
**Rule debugging:
Trying rule: 6 - Generic template for all windows rules.
*Rule 6 matched.
*Trying child rules.
Trying rule: 7301 - Grouping of Symantec AV rules from eventlog.
Trying rule: 18100 - Group of windows rules.
*Rule 18100 matched.
*Trying child rules.
Trying rule: 18101 - Windows informational event.
Trying rule: 18102 - Windows warning event.
Trying rule: 18104 - Windows audit success event.
Trying rule: 18103 - Windows error event.
Trying rule: 18105 - Windows audit failure event.
**Phase 3: Completed filtering (rules).
Rule id: '18100'
Level: '0'
Description: 'Group of windows rules.'
So, the original fields of decoder has been erased (status, id, extra_data,
srcuser, system_name, name, location, user, system_name). The consecuence
is that orginal rules don't match.
El viernes, 17 de febrero de 2017, 14:01:15 (UTC+1), Casimiro escribió:
>
> I'm trying to override the windows decoder to extract more fields (in
> local_decoder.xml), like source ip, destination ip, source port,
>
> This is my local decoder for windows
>
> <decoder name="windows-audit">
> <parent>windows</parent>
> <prematch>AUDIT_FAILURE(51512)</prematch>
> <regex offset="after_parent">Source Address:\s+(\d+.\d+.\d+.\d+)</regex>
> <order>srcip</order>
> </decoder>
>
> When I put new decoder en local_decoder.xml. The windows log don't match
> with windows parent decoder. If I take off the local decoder then log match
> with windows parent decoder.
>
> I want to get all fields: parent fields + soon fields (in this case
> status, id, extra_data, srcuser, system_name and srcip)
>
> Thanks in advanced
>
>
>
>
>
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