atomic-threat-coverage/Atomic_Threat_Coverage/Detection_Rules/win_susp_sam_dump.md

Title	SAM Dump to AppData
Description	Detects suspicious SAM dump activity as cause by QuarksPwDump and other password dumpers
ATT&CK Tactic	TA0006: Credential Access
ATT&CK Technique	T1003: Credential Dumping
Data Needed	DN_0083_16_access_history_in_hive_was_cleared
Trigger	T1003: Credential Dumping
Severity Level	high
False Positives	Penetration testing
Development Status	experimental
References
Author	Florian Roth

Detection Rules

Sigma rule

title: SAM Dump to AppData
status: experimental
description: Detects suspicious SAM dump activity as cause by QuarksPwDump and other password dumpers
tags:
    - attack.credential_access
    - attack.t1003
author: Florian Roth
logsource:
    product: windows
    service: system
    definition: The source of this type of event is Kernel-General
detection:
    selection:
        EventID: 16
    keywords:
        - '*\AppData\Local\Temp\SAM-*.dmp *'
    condition: all of them
falsepositives:
    - Penetration testing
level: high

Kibana query

(EventID:"16" AND "*\\\\AppData\\\\Local\\\\Temp\\\\SAM\\-*.dmp\\ *")

X-Pack Watcher

curl -s -XPUT -H \'Content-Type: application/json\' --data-binary @- localhost:9200/_xpack/watcher/watch/SAM-Dump-to-AppData <<EOF\n{\n  "trigger": {\n    "schedule": {\n      "interval": "30m"\n    }\n  },\n  "input": {\n    "search": {\n      "request": {\n        "body": {\n          "size": 0,\n          "query": {\n            "query_string": {\n              "query": "(EventID:\\"16\\" AND \\"*\\\\\\\\AppData\\\\\\\\Local\\\\\\\\Temp\\\\\\\\SAM\\\\-*.dmp\\\\ *\\")",\n              "analyze_wildcard": true\n            }\n          }\n        },\n        "indices": []\n      }\n    }\n  },\n  "condition": {\n    "compare": {\n      "ctx.payload.hits.total": {\n        "not_eq": 0\n      }\n    }\n  },\n  "actions": {\n    "send_email": {\n      "email": {\n        "to": null,\n        "subject": "Sigma Rule \'SAM Dump to AppData\'",\n        "body": "Hits:\\n{{#ctx.payload.hits.hits}}{{_source}}\\n================================================================================\\n{{/ctx.payload.hits.hits}}",\n        "attachments": {\n          "data.json": {\n            "data": {\n              "format": "json"\n            }\n          }\n        }\n      }\n    }\n  }\n}\nEOF\n

Graylog

(EventID:"16" AND "*\\\\AppData\\\\Local\\\\Temp\\\\SAM\\-*.dmp *")