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Added detection testing service results inDomain Account Discovery With Net App
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@@ -6,19 +6,21 @@ author: Teoderick Contreras, Splunk
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type: TTP
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datamodel:
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- Endpoint
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description: This search is to detect a process command line for AD discovery. This techique is using the windows built in net.exe application
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to query AD users in the targetted machine. This techique was seen in several malware as part of there recon and can be a good pivot of analysis.
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search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time) as lastTime from datamodel=Endpoint.Processes
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where (Processes.process_name="net.exe" OR Processes.process_name="net1.exe") AND Processes.process = "* user*" AND Processes.process = "*/do*"
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by Processes.dest Processes.user Processes.parent_process Processes.process_name Processes.process Processes.process_id Processes.parent_process_id
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Processes.parent_process_name | `drop_dm_object_name(Processes)`
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| `security_content_ctime(firstTime)`
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| `security_content_ctime(lastTime)`
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description: This search is to detect a process command line for AD discovery. This
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techique is using the windows built in net.exe application to query AD users in
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the targetted machine. This techique was seen in several malware as part of there
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recon and can be a good pivot of analysis.
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search: '| tstats `security_content_summariesonly` count min(_time) as firstTime max(_time)
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as lastTime from datamodel=Endpoint.Processes where (Processes.process_name="net.exe"
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OR Processes.process_name="net1.exe") AND Processes.process = "* user*" AND Processes.process
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= "*/do*" by Processes.dest Processes.user Processes.parent_process Processes.process_name
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Processes.process Processes.process_id Processes.parent_process_id Processes.parent_process_name
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| `drop_dm_object_name(Processes)` | `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)`
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| `domain_account_discovery_with_net_app_filter`'
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how_to_implement: To successfully implement this search, you need to be ingesting
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logs with the process name, parent process, and command-line executions from your
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endpoints. If you are using Sysmon, you must have at least version 6.0.4 of the
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Sysmon TA.
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Sysmon TA.
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known_false_positives: network operator can execute this command
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references:
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- https://docs.microsoft.com/en-us/defender-for-identity/playbook-domain-dominance
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@@ -37,18 +39,17 @@ tags:
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- Splunk Cloud
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required_fields:
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- _time
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- Processes.dest
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- Processes.user
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- Processes.parent_process
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- Processes.process_name
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- Processes.process
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- Processes.process_id
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- Processes.dest
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- Processes.user
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- Processes.parent_process
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- Processes.process_name
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- Processes.process
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- Processes.process_id
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- Processes.parent_process_id
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- Processes.parent_process_name
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security_domain: endpoint
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impact: 50
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confidence: 50
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# (impact * confidence)/100
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confidence: 50
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risk_score: 25
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context:
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- Source:Endpoint
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@@ -66,4 +67,5 @@ tags:
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- name: parent_process_name
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type: Parent Process
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role:
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- Parent Process
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- Parent Process
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automated_detection_testing: passed
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