[New Rule] NTDS or SAM Database File Copied (#622)

* [New Rule] NTDS or SAM Database File Copied * fixed description * eql syntax * Update rules/windows/credential_access_copy_ntds_sam_volshadowcp_cmdline.toml Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com> * ecs_version Co-authored-by: Brent Murphy <56412096+bm11100@users.noreply.github.com>
2020-12-08 16:55:35 +01:00
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commit 16551bbfe7
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+[metadata]
+creation_date = "2020/11/24"
+maturity = "production"
+updated_date = "2020/11/24"
+
+[rule]
+author = ["Elastic"]
+description = """
+Identifies a copy operation of the Active Directory Domain Database (ntds.dit) or Security Account Manager (SAM) files.
+Those files contain sensitive information including hashed domain and/or local credentials.
+"""
+from = "now-9m"
+index = ["winlogbeat-*", "logs-endpoint.events.*"]
+language = "eql"
+license = "Elastic License"
+max_signals = 33
+name = "NTDS or SAM Database File Copied"
+references = ["https://thedfirreport.com/2020/11/23/pysa-mespinoza-ransomware/"]
+risk_score = 73
+rule_id = "3bc6deaa-fbd4-433a-ae21-3e892f95624f"
+severity = "high"
+tags = ["Elastic", "Host", "Windows", "Threat Detection", "Credential Access"]
+type = "eql"
+
+query = '''
+process where event.type in ("start", "process_started") and
+ process.pe.original_file_name in ("Cmd.Exe", "PowerShell.EXE", "XCOPY.EXE") and
+ process.args : ("copy", "xcopy", "Copy-Item", "move", "cp", "mv") and
+ process.args : ("*\\ntds.dit", "*\\config\\SAM", "\\*\\GLOBALROOT\\Device\\HarddiskVolumeShadowCopy*\\*")
+'''
+
+
+[[rule.threat]]
+framework = "MITRE ATT&CK"
+[[rule.threat.technique]]
+id = "T1003"
+name = "OS Credential Dumping"
+reference = "https://attack.mitre.org/techniques/T1003/"
+
+
+[rule.threat.tactic]
+id = "TA0006"
+name = "Credential Access"
+reference = "https://attack.mitre.org/tactics/TA0006/"