Splunk Search

Field extraction for IP ADFS Logs

donaldmayo
New Member

Hello,

I found one post but the REGEX search didn't work. How would I extract the IP into a new field that comes after http://schemas.microsoft.com/2012/01/requestcontext/claims/x-ms-forwarded-client-ip. For example, here's the actual log:

10/24/2018 11:09:33 AM
LogName=Security
SourceName=AD FS Auditing
... 8 lines omitted ...
OpCode=Info
... 5 lines omitted ...

Caller identity:
http://schemas.microsoft.com/ws/2008/06/identity/claims/groupsid
... 6 lines omitted ...
S-1-5-21-1869490827-231744046-782984527-6480
http://schemas.microsoft.com/ws/2008/06/identity/claims/groupsid
S-1-5-21-1869490827-231744046-782984527-5748
http://schemas.microsoft.com/ws/2008/06/identity/claims/groupsid
S-1-5-21-3559849827-2309094810-816736563-404642
http://schemas.microsoft.com/ws/2008/06/identity/claims/groupsid
S-1-5-21-2029530193-91048431-1849977318-34517
http://schemas.microsoft.com/2012/01/requestcontext/claims/x-ms-forwarded-client-ip
99.203.16.212
http://schemas.microsoft.com/ws/2008/06/identity/claims/windowsaccountname
DOMAIN\johndoe
http://schemas.xmlsoap.org/ws/2005/05/identity/claims/upn
[email protected]

I'm looking to extract any IP after that x-ms-forwarded-client-ip string.

Thank you!

Tags (1)
0 Karma

Vijeta
Influencer

Try this

|rex field=_raw "x-ms-forwarded-client-ip\s+(?<ip>\d{1,3}.\d{1,3}.\d{1,3}.\d{1,3})"
0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Self-Healing Pipeline Is Now Generally Available: AI-Powered CIM Compliance

Maintaining data integrity across security and analytics pipelines is an ongoing challenge. Data ...

[Puzzles] Solve, Learn, Repeat: Family Trees

This puzzle (first published here is based on finding grandparents and grandchildren (inspired by a question ...

Break the Build: Inside the KubeDoom Lounge at .conf26

    You step up to the machine. The pixelated corridors of a certain 1993 FPS load in front of you, EMP Pulse ...