Splunk Search

Field Extraction did not work

gnshah12345
Observer

Oct 30 06:55:08 Server1 request-default Cert x.x.x.x - John bank_user Viewer_PIP_PIP_env vu01 Appl Test [30/Oct/2023:06:54:51.849 -0400] "GET /web/appWeb/external/index.do HTTP/1.1" 200 431 7 9 8080937 x.x.x.x /junctions 25750 - "OU=00000000+CN=John bank_user Viewer_PIP_PIP_env vu01 Appl Test,OU=st,O=Bank,C=us" bfe9a8e8-7712-11ee-ab2e-0050568906b9 "x509: TLSV12: 30" "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.80 Safari/537.36"

I have above in the log.  I have field extraction (regular expressions) to extract user and in this case "John bank_user Viewer_PIP_PIP_env vu01 Appl Test".  The alert did find this user but reported the user name as "john".  There are some other users, who have space in the name shows up in alert fine. How do I fix the extraction so entire user name shows up in the alert?

Labels (1)
0 Karma

isoutamo
SplunkTrust
SplunkTrust

Hi

as @burwell asked, what you have tried?

Here is some examples which you could also try based on your one line sample.

...
| rex "^\w+ \d+ \d\d:\d\d:\d\d \w+ [\w-]+ \w+ [\w\.]+ - (?<User1>[^\[]+)"
| eval User1 = rtrim(User1, " ")
| rex "CN=(?<User2>[^,]+),OU"
...

 r. Ismo

0 Karma

burwell
SplunkTrust
SplunkTrust

Hi. Can you show what props you are currently using?

0 Karma
Get Updates on the Splunk Community!

See just what you’ve been missing | Observability tracks at Splunk University

Looking to sharpen your observability skills so you can better understand how to collect and analyze data from ...

Weezer at .conf25? Say it ain’t so!

Hello Splunkers, The countdown to .conf25 is on-and we've just turned up the volume! We're thrilled to ...

How SC4S Makes Suricata Logs Ingestion Simple

Network security monitoring has become increasingly critical for organizations of all sizes. Splunk has ...