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P4T12ICK
75 lines
2.4 KiB
YAML
75 lines
2.4 KiB
YAML
name: Esentutl SAM Copy
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id: d372f928-ce4f-11eb-a762-acde48001122
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version: 1
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date: '2021-08-18'
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author: Michael Haag, Splunk
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status: production
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type: Hunting
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description: The following analytic identifies the process - `esentutl.exe` - being
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used to capture credentials stored in ntds.dit or the SAM file on disk. During triage,
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review parallel processes and determine if legitimate activity. Upon determination
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of illegitimate activity, take further action to isolate and contain the threat.
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data_source:
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- Sysmon Event ID 1
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search:
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selection1:
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OriginalFileName: esentutl.exe
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selection2:
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Image|endswith: esentutl.exe
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selection3:
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CommandLine:
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- '*ntds*'
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- '*SAM*'
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condition: (selection1 or selection2) and selection3
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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. In addition,
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confirm the latest CIM App 4.20 or higher is installed and the latest TA for the
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endpoint product.
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known_false_positives: False positives should be limited. Filter as needed.
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references:
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- https://github.com/redcanaryco/atomic-red-team/blob/6a570c2a4630cf0c2bd41a2e8375b5d5ab92f700/atomics/T1003.002/T1003.002.md
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- https://attack.mitre.org/software/S0404/
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tags:
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analytic_story:
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- Credential Dumping
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- Living Off The Land
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asset_type: Endpoint
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confidence: 100
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impact: 80
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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$ attempting to capture credentials for offline
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cracking or observability.
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mitre_attack_id:
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- T1003.002
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- T1003
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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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risk_score: 80
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security_domain: endpoint
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tests:
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- name: True Positive Test
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attack_data:
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- data: https://media.githubusercontent.com/media/splunk/attack_data/master/datasets/attack_techniques/T1003.002/atomic_red_team/windows-sysmon.log
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source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
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sourcetype: xmlwineventlog
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