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Filtered the failed action events #645

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merged 2 commits into from
Oct 3, 2024
Merged

Filtered the failed action events #645

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79a0211
Filtered the failed action events
hardikhdholariya Sep 26, 2024
6bc165a
excluded unnecessary source type
hardikhdholariya Sep 30, 2024
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4 changes: 2 additions & 2 deletions cyences_app_for_splunk/default/savedsearches.conf
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Original file line number Diff line number Diff line change
Expand Up @@ -6526,7 +6526,7 @@ display.page.search.tab = statistics
display.page.search.mode = fast
request.ui_dispatch_app = cyences_app_for_splunk
request.ui_dispatch_view = search
search = index=* sourcetype!="WinRegistry" NOT (sourcetype="WinEventLog" user_type="computer") NOT (sourcetype="meraki:accesspoints" (NOT eventData.identity="*")) (user=* OR User=* OR UserName=* OR Username=* OR userName=* OR username=* OR user_name=* OR src_user=*) \
search = index=* sourcetype!="WinRegistry" NOT (sourcetype="WinEventLog" user_type="computer") NOT (sourcetype="meraki:accesspoints" (NOT eventData.identity="*")) NOT (action=fail*) (user=* OR User=* OR UserName=* OR Username=* OR userName=* OR username=* OR user_name=* OR src_user=*) \
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Let's exclude some of the big sources that we are aware of to reduce the search space.

pan:traffic, fortigate-traffic-logs (not sure exact sourcetype), etc

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there are many sourcetypes having action field.

do we have to exclude logs for some login specific sourcetypes or for any sourcetypes?

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for performance completely exclude some of the unuseful sourcetypes

| `cs_user_inventory_data_filter` \
| eval user=mvdedup(mvappend(coalesce(src_user, user, user_name, username,Username, User, UserName, userName), if(mail="null" or mail="",null(),mail))), user_type=coalesce(user_type, user_role, user_category, "n/a") \
| search NOT user IN ("$*", "-", "' or '1=1", ".{jndi", "") \
Expand Down Expand Up @@ -6623,4 +6623,4 @@ action.cyences_notable_event_action.system_compromised_drilldown = `cs_f5_bigip
action.cyences_notable_event_action.attacker_search = | stats count by ip_client
action.cyences_notable_event_action.attacker_drilldown = `cs_f5_bigip_asm` ip_client="*" dest_ip="*" severity IN ("critical","high","medium") enforcement_action!=block attack_type!="JSON Parser Attack" ip_client=$row.ip_client$
action.cyences_send_email_action = 1
action.cyences_notable_event_action.products = F5 BIGIP
action.cyences_notable_event_action.products = F5 BIGIP