All Apps and Add-ons

TA-user-agents: Why are some user agents showing as unknown, and how do we add these into the lookup definitions?

robertgoolsby
Engager

It looks like there are a handful of user agents that show up as unknown:

Mozilla/5.0+(iPhone;+CPU+iPhone+OS+7_1_1+like+Mac+OS+X)+AppleWebKit/537.51.2+(KHTML,+like+Gecko)+Mobile/11D201
Mozilla/5.0+(iPad;+CPU+OS+8_4_1+like+Mac+OS+X)+AppleWebKit/600.1.4+(KHTML,+like+Gecko)+Mobile/12H321
Mozilla/4.0+(compatible;+MSIE+6.0;+MS+Web+Services+Client+Protocol+4.0.30319.34209
Mozilla/5.0+(iPhone;+CPU+iPhone+OS+8_3+like+Mac+OS+X)+AppleWebKit/600.1.4+(KHTML,+like+Gecko)+Mobile/12F70

How do we get these added into the lookup definitions? Manually though the .yaml?

0 Karma
1 Solution

dshpritz
SplunkTrust
SplunkTrust

One thing you may want to try doing is removing the "+" symbols from the user-agent string (some of the regexes in the YAML do use spaces). Something like:

eval http_user_agent = replace(http_user_agent,"+"," ")

If that doesn't work, then you may need to edit the regexes. This can be done by editing the regexes.yaml, but be aware that those changes may be overwritten on an upgrade.

HTH,

Dave

View solution in original post

dshpritz
SplunkTrust
SplunkTrust

One thing you may want to try doing is removing the "+" symbols from the user-agent string (some of the regexes in the YAML do use spaces). Something like:

eval http_user_agent = replace(http_user_agent,"+"," ")

If that doesn't work, then you may need to edit the regexes. This can be done by editing the regexes.yaml, but be aware that those changes may be overwritten on an upgrade.

HTH,

Dave

robertgoolsby
Engager

Close - needed the slash:

eval http_user_agent = replace(http_user_agent,"\+"," ")
Get Updates on the Splunk Community!

What the End of Support for Splunk Add-on Builder Means for You

Hello Splunk Community! We want to share an important update regarding the future of the Splunk Add-on Builder ...

Solve, Learn, Repeat: New Puzzle Channel Now Live

Welcome to the Splunk Puzzle PlaygroundIf you are anything like me, you love to solve problems, and what ...

Building Reliable Asset and Identity Frameworks in Splunk ES

 Accurate asset and identity resolution is the backbone of security operations. Without it, alerts are ...