topic Re: Splunk query to fetch a particular string from lot of data output in Splunk Search

Splunk query to fetch a particular string from lot of data output

akashjohn — Tue, 29 Sep 2020 12:00:21 GMT

This is the out put of a splunk query for wineventlog index. From this we need to filter out a particular string "abc_mop_efg" from "Account Name: abc_mop_efg". Could you please let us know how can we design splunk query for the same?

Subject:
Security ID: NULL SID
Account Name: -
Account Domain: -
Logon ID: 0x0

Logon Type: 3

Account For Which Logon Failed:
Security ID: NULL SID
Account Name: abc_mop_efg
Account Domain: CORP

Failure Information:
Failure Reason: Unknown user name or bad password.
Status: 0xC000006D
Sub Status: 0xC0000064

Process Information:
Caller Process ID: 0x0
Caller Process Name: -

Network Information:
Workstation Name: PRD-SNr-MID-W
Source Network Address: 10.2.2.2
Source Port: 52536

Detailed Authentication Information:
Logon Process: NtLmSsp
Authentication Package: NTLM
Transited Services: -
Package Name (NTLM only): -
Key Length: 0

This event is generated when a logon request fails. It is generated on the computer where access was attempted.

The Subject fields indicate the account on the local system which requested the logon. This is most commonly a service such as the Server service, or a local process such as Winlogon.exe or Services.exe.

The Logon Type field indicates the kind of logon that was requested. The most common types are 2 (interactive) and 3 (network).

The Process Information fields indicate which account and process on the system requested the logon.

The Network Information fields indicate where a remote logon request originated. Workstation name is not always available and may be left blank in some cases.

The authentication information fields provide detailed information about this specific logon request.
- Transited services indicate which intermediate services have participated in this logon request.
- Package name indicates which sub-protocol was used among the NTLM protocols.
- Key length indicates the length of the generated session key. This will be 0 if no session key was requested.

Re: Splunk query to fetch a particular string from lot of data output

sundareshr — Wed, 30 Nov 2016 12:35:17 GMT

Try this

index=wineventlog ("CORP" AND "svc" AND "failed") NOT "MGMT" | rex max_match=2 "Account Name\s?:\s?(?<AcctName>.*)" | eval AcctName=mvindex(AcctName, -1)

Re: Splunk query to fetch a particular string from lot of data output

akashjohn — Tue, 29 Sep 2020 12:00:27 GMT

Hi sundareshr,

Sorry for the communication issue.

The result which I was mentioned earlier is the result of the query "index=wineventlog ("CORP" AND "svc" AND "failed") NOT MGMT"

This value "** svc_mop_svcnow**" will changed for different events.

What we are looking is for to list out all the values which are coming in place of "svc_mop_svcnow" with a query.

Thanks,
Akash John

Re: Splunk query to fetch a particular string from lot of data output

sundareshr — Wed, 30 Nov 2016 13:21:46 GMT

Try the updated query

Re: Splunk query to fetch a particular string from lot of data output

akashjohn — Wed, 30 Nov 2016 13:56:01 GMT

Hi sundareshr,

It throwing an error "Unbalanced quotes.".

Could you please verify if the query is properly formatted?

Re: Splunk query to fetch a particular string from lot of data output

akashjohn — Tue, 29 Sep 2020 12:00:30 GMT

Hi Sundarehr,

I have updated the query as

index=wineventlog ("CORP" AND "svc" AND "failed") NOT MGMT | rex max_match=2 "Account Name\s?:\s?(?.*") | eval AcctName=mvindex(AcctName, -1)

and executed, now there is no error showing but the result what we are getting is the old result.. Attaching the same below,

Subject:
Security ID: NULL SID
Account Name: -
Account Domain: -
Logon ID: 0x0

Logon Type: 3

Account For Which Logon Failed:
Security ID: NULL SID
Account Name: svc_mop_svcnow
Account Domain: CORP