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updates from Lou
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@@ -1,7 +1,7 @@
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name: Splunk User Enumeration Attempt
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id: 25625cb4-1c4d-4463-b0f9-7cb462699cde
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version: 2
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date: '2023-07-31'
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version: 1
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date: '2022-04-29'
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author: Lou Stella, Splunk
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status: production
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type: TTP
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@@ -11,7 +11,7 @@ description: On May 3rd, 2022, Splunk published a security advisory for usernam
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as well as actual exploitation in unpatched version of Splunk.
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data_source: []
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search: ' `splunkd_failed_auths` | stats count(user) as auths by user, src | where
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auths>5 | stats dc(user) as "Users", sum(auths) as TotalFailedAuths by src |
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auths>5 | stats values(user) as "Users", sum(auths) as TotalFailedAuths by src |
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`splunk_user_enumeration_attempt_filter`'
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how_to_implement: This detection does not require you to ingest any new data. The
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detection does require the ability to search the _audit index. This detection may
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@@ -13,7 +13,7 @@ data_source:
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- Sysmon Event ID 1
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search: '| tstats `security_content_summariesonly` count FROM datamodel=Endpoint.Registry
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WHERE (Registry.registry_path= "*\\SOFTWARE\\Microsoft\\.NETFramework\\ETWEnabled"
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Registry.registry_value_data = "0x00000000") BY _time span=1h Registry.registry_path
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Registry.registry_value_data = "0x00000000") BY _time span=1h Registry.dest Registry.registry_path
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Registry.registry_key_name Registry.registry_value_name Registry.registry_value_data
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Registry.process_guid | `drop_dm_object_name(Registry)` | where isnotnull(registry_value_data)
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| `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `disable_etw_through_registry_filter`'
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