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P4T12ICK
89 lines
3.0 KiB
YAML
89 lines
3.0 KiB
YAML
name: Detect AzureHound Command-Line Arguments
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id: 26f02e96-c300-11eb-b611-acde48001122
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version: 1
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date: '2021-06-01'
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author: Michael Haag, Splunk
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type: TTP
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datamodel:
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- Endpoint
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description: The following analytic identifies the common command-line argument used
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by AzureHound `Invoke-AzureHound`. Being the script is FOSS, function names may
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be modified, but these changes are dependent upon the operator. In most instances
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the defaults are used. This analytic works to identify the common command-line attributes
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used. It does not cover the entirety of every argument in order to avoid false positives.
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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 IN ("*invoke-azurehound*")
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by Processes.dest Processes.user Processes.parent_process Processes.process_name
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Processes.process Processes.process_id Processes.parent_process_id | `drop_dm_object_name(Processes)`
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| `security_content_ctime(firstTime)` | `security_content_ctime(lastTime)` | `detect_azurehound_command_line_arguments_filter`'
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how_to_implement: To successfully implement this search you need to be ingesting information
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on process that include the name of the process responsible for the changes from
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your endpoints into the `Endpoint` datamodel in the `Processes` node.
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known_false_positives: Unknown.
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references:
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- https://attack.mitre.org/software/S0521/
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- https://github.com/BloodHoundAD/BloodHound/tree/master/Collectors
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- https://posts.specterops.io/introducing-bloodhound-4-0-the-azure-update-9b2b26c5e350
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- https://github.com/BloodHoundAD/BloodHound/blob/master/Collectors/AzureHound.ps1
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tags:
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analytic_story:
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- Discovery Techniques
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confidence: 100
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context:
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- Source:Endpoint
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- Stage:Discovery
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dataset:
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- https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1059.001/sharphound/windows-sysmon.log
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impact: 80
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kill_chain_phases:
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- Reconnaissance
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message: An instance of $parent_process_name$ spawning $process_name$ was identified
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on endpoint $dest$ by user $user$ using AzureHound to enumerate AzureAD.
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mitre_attack_id:
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- T1087.002
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- T1069.001
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- T1482
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- T1087.001
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- T1087
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- T1069.002
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- T1069
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observable:
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- name: user
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type: User
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role:
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- Victim
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- name: dest
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type: Hostname
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role:
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- Victim
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- name: parent_process_name
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type: Process
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role:
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- Parent Process
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- name: process_name
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type: Process
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role:
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- Child Process
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product:
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- Splunk Enterprise
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- Splunk Enterprise Security
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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_name
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- Processes.parent_process
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- Processes.original_file_name
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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_path
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- Processes.process_path
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- Processes.parent_process_id
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risk_score: 80
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security_domain: endpoint
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supported_tas:
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- Splunk_TA_microsoft_sysmon
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asset_type: Endpoint
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