Splunk Search

Field extract

keyu921
Explorer

I want to extract the client ip and user "DELTA\Kelly" from the windows event messages


Message=The following client performed a SASL (Negotiate/Kerberos/NTLM/Digest) LDAP bind without requesting signing (integrity verification), or performed a simple bind over a cleartext (non-SSL/TLS-encrypted) LDAP connection.
Client IP address:
172.4.5.6:57157
Identity the client attempted to authenticate as:
DELTA\Kelly
Binding Type:

Fixed..... Please close

Labels (2)
0 Karma
1 Solution

bowesmana
SplunkTrust
SplunkTrust
| makeresults
| eval Message="The following client performed a SASL (Negotiate/Kerberos/NTLM/Digest) LDAP bind without requesting signing (integrity verification), or performed a simple bind over a cleartext (non-SSL/TLS-encrypted) LDAP connection.
Client IP address:
172.4.5.6:57157
Identity the client attempted to authenticate as:
DELTA\Kelly
Binding Type:

Fixed..... Please close"
| rex field=Message "(?ms).*Client IP address:[^\d]+(?<ip>\d+\.\d+\.\d+.\d+).*authenticate as:[\r\n\s]+(?<domain>\w+)\\\(?<user>[\w ]+)"

This should work and will extract the fields ip, domain and user. If you want to include the user and domain as a single value, then  get rid of the (?<domain>\w+) \\\ and add change the user extraction to 

(?<user>[\w\\\ ]+)

 

View solution in original post

0 Karma

bowesmana
SplunkTrust
SplunkTrust
| makeresults
| eval Message="The following client performed a SASL (Negotiate/Kerberos/NTLM/Digest) LDAP bind without requesting signing (integrity verification), or performed a simple bind over a cleartext (non-SSL/TLS-encrypted) LDAP connection.
Client IP address:
172.4.5.6:57157
Identity the client attempted to authenticate as:
DELTA\Kelly
Binding Type:

Fixed..... Please close"
| rex field=Message "(?ms).*Client IP address:[^\d]+(?<ip>\d+\.\d+\.\d+.\d+).*authenticate as:[\r\n\s]+(?<domain>\w+)\\\(?<user>[\w ]+)"

This should work and will extract the fields ip, domain and user. If you want to include the user and domain as a single value, then  get rid of the (?<domain>\w+) \\\ and add change the user extraction to 

(?<user>[\w\\\ ]+)

 

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!

Event Series: Splunk Observability Metrics Cost Optimization

Balancing Scale and Spend: Gaining Control Over High-Volume Metrics in Splunk Observability Cloud As ...

Kick the Tires Before You Commit: A Hands-On Tour of the Splunk Observability Cloud ...

Evaluating an enterprise observability platform usually goes like this: fill out a form, get a free trial with ...

Deep insights, no barriers: Splunk Observability Cloud Free Edition

As software delivery cycles continue to accelerate, observability shouldn’t be a luxury — it should be a ...