Terrance DeJesus
93edc44284
* added comprehensive file timeline to Hosts File Modified rule * added Comprehensive Process Timeline to Interactive Terminal Spawned via Python rule * updated rules to have generic instead of comprehensive * updated several rules with timeline ID and timeline title values * changed updated_date for threat intel fleet integrations * added missing templates to timeline_templates dict in definitions.py * added comprehensive timeline templates to alerts after definitions.py was updated * updated rules with comprehensive timeline templates and added min stack comments and versions * removing timeline template changes which is tracked in #1904 * Update rules/linux/execution_python_tty_shell.toml Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com> * Delete Pipfile Removing pipfile * Delete Pipfile.lock deleting pipfile.lock * Update rules/windows/execution_command_shell_started_by_svchost.toml updating title Co-authored-by: Justin Ibarra <brokensound77@users.noreply.github.com>
74 lines
3.1 KiB
TOML
74 lines
3.1 KiB
TOML
[metadata]
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creation_date = "2020/11/18"
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maturity = "production"
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updated_date = "2022/03/31"
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min_stack_comments = "Comprehensive timeline templates only available in 8.2+"
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min_stack_version = "8.2"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies run key or startup key registry modifications. In order to survive reboots and other system interrupts,
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attackers will modify run keys within the registry or leverage startup folder items as a form of persistence.
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"""
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from = "now-9m"
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index = ["logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Startup or Run Key Registry Modification"
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risk_score = 21
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rule_id = "97fc44d3-8dae-4019-ae83-298c3015600f"
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severity = "low"
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tags = ["Elastic", "Host", "Windows", "Threat Detection", "Persistence"]
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timeline_id = "3e47ef71-ebfc-4520-975c-cb27fc090799"
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timeline_title = "Comprehensive Registry Timeline"
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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registry where registry.data.strings != null and
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registry.path : (
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/* Machine Hive */
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"HKLM\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\*",
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"HKLM\\Software\\Microsoft\\Windows\\CurrentVersion\\RunOnce\\*",
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"HKLM\\Software\\Microsoft\\Windows\\CurrentVersion\\RunOnceEx\\*",
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"HKLM\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer\\Run\\*",
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"HKLM\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon\\Shell\\*",
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/* Users Hive */
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"HKEY_USERS\\*\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\*",
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"HKEY_USERS\\*\\Software\\Microsoft\\Windows\\CurrentVersion\\RunOnce\\*",
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"HKEY_USERS\\*\\Software\\Microsoft\\Windows\\CurrentVersion\\RunOnceEx\\*",
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"HKEY_USERS\\*\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\Explorer\\Run\\*",
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"HKEY_USERS\\*\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon\\Shell\\*"
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) and
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/* add common legitimate changes without being too restrictive as this is one of the most abused AESPs */
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not registry.data.strings : "ctfmon.exe /n" and
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not (registry.value : "Application Restart #*" and process.name : "csrss.exe") and
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user.id not in ("S-1-5-18", "S-1-5-19", "S-1-5-20") and
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not registry.data.strings : ("?:\\Program Files\\*.exe", "?:\\Program Files (x86)\\*.exe") and
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not process.executable : ("?:\\Windows\\System32\\msiexec.exe", "?:\\Windows\\SysWOW64\\msiexec.exe") and
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not (process.name : "OneDriveSetup.exe" and
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registry.value : ("Delete Cached Standalone Update Binary", "Delete Cached Update Binary", "amd64", "Uninstall *") and
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registry.data.strings : "?:\\Windows\\system32\\cmd.exe /q /c * \"?:\\Users\\*\\AppData\\Local\\Microsoft\\OneDrive\\*\"")
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'''
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[[rule.threat]]
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framework = "MITRE ATT&CK"
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[[rule.threat.technique]]
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id = "T1547"
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name = "Boot or Logon Autostart Execution"
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reference = "https://attack.mitre.org/techniques/T1547/"
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[[rule.threat.technique.subtechnique]]
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id = "T1547.001"
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name = "Registry Run Keys / Startup Folder"
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reference = "https://attack.mitre.org/techniques/T1547/001/"
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[rule.threat.tactic]
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id = "TA0003"
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name = "Persistence"
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reference = "https://attack.mitre.org/tactics/TA0003/"
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