Splunk Search

Match IP from main search to an IP in lookup file and output only the events that match from the main search

carldipace
New Member

I have my main search below. I want to match ip's from my main search to the ip's in my lookup file and output only the events that match. The lookup file field for my ip's is "host_ip" and the field in my main search is "dest_ip".

index=fda_sec_suricata sourcetype=suricata (src_ip!=10.X.X.X/X AND src_ip!=172.X.X.X/X AND src_ip!=192.X.X.X/X) (host="10.X.X.X" OR host="10.X.X.X" OR host="10.X.X.X" OR host="10.X.X.X" OR host="10.X.X.X" OR host="10.X.X.X") |
eval CVE_listed=if(isnotnull(reference_cve) OR like(signature,"%CVE"),1,0) | rex field=signature "CVE-(?\d+-\d+)" |
eval reference_cve="CVE-".reference_cve |
search (CVE_listed=1) |
dedup reference_cve, src_ip, src_port, dest_ip, dest_port |
table category, signature, severity, reference_cve, reference_url, src_ip, src_port, dest_dns, dest_nt_host, dest_ip, dest_port, _time

0 Karma

somesoni2
Revered Legend

Try this

index=fda_sec_suricata sourcetype=suricata (src_ip!=10.X.X.X/X AND src_ip!=172.X.X.X/X AND src_ip!=192.X.X.X/X) (host="10.X.X.X" OR host="10.X.X.X" OR host="10.X.X.X" OR host="10.X.X.X" OR host="10.X.X.X" OR host="10.X.X.X")  [| inputlookup YourLookup.csv | table host_ip | rename host_ip as dest_ip ]
| eval CVE_listed=if(isnotnull(reference_cve) OR like(signature,"%CVE"),1,0) | rex field=signature "CVE-(?\d+-\d+)" 
| eval reference_cve="CVE-".reference_cve 
| search (CVE_listed=1) 
| dedup reference_cve, src_ip, src_port, dest_ip, dest_port 
| table category, signature, severity, reference_cve, reference_url, src_ip, src_port, dest_dns, dest_nt_host, dest_ip, dest_port, _time
0 Karma
Career Survey
First 500 qualified respondents will receive a $20 gift card! Tell us about your professional Splunk journey.

Can’t make it to .conf25? Join us online!

Get Updates on the Splunk Community!

Calling All Security Pros: Ready to Race Through Boston?

Hey Splunkers, .conf25 is heading to Boston and we’re kicking things off with something bold, competitive, and ...

Beyond Detection: How Splunk and Cisco Integrated Security Platforms Transform ...

Financial services organizations face an impossible equation: maintain 99.9% uptime for mission-critical ...

Customer success is front and center at .conf25

Hi Splunkers, If you are not able to be at .conf25 in person, you can still learn about all the latest news ...