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P4T12ICK
71 lines
2.2 KiB
YAML
71 lines
2.2 KiB
YAML
name: Windows Disable Memory Crash Dump
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id: 59e54602-9680-11ec-a8a6-acde48001122
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version: 1
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date: '2022-02-25'
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author: Michael Haag, Splunk
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status: production
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type: TTP
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description: The following analytic identifies a process that is attempting to disable
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the ability on Windows to generate a memory crash dump. This was recently identified
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being utilized by HermeticWiper. To disable crash dumps, the value must be set to
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0. This feature is typically modified to perform a memory crash dump when a computer
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stops unexpectedly because of a Stop error (also known as a blue screen, system
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crash, or bug check).
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data_source:
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- Sysmon Event ID 13
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search:
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selection1:
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Details: '0x00000000'
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TargetObject: '*\\CurrentControlSet\\Control\\CrashControl\\CrashDumpEnabled'
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condition: selection1
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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 Filesystem responsible for the changes from
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your endpoints into the `Endpoint` datamodel in the `Filesystem` and `Registry`
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node.
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known_false_positives: unknown
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references:
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- https://blog.talosintelligence.com/2022/02/threat-advisory-hermeticwiper.html
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- https://docs.microsoft.com/en-us/troubleshoot/windows-server/performance/memory-dump-file-options
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tags:
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analytic_story:
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- Data Destruction
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- Ransomware
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- Hermetic Wiper
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- Windows Registry Abuse
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asset_type: Endpoint
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confidence: 100
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impact: 90
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message: A process $process_name$ was identified attempting to disable memory crash
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dumps on $dest$.
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mitre_attack_id:
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- T1485
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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: 90
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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/malware/hermetic_wiper/sysmon.log
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source: XmlWinEventLog:Microsoft-Windows-Sysmon/Operational
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sourcetype: xmlwineventlog
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