Mika Ayenson
62298d92f4
* Convert config header to setup in note field
* Parse note field into separate setup and note field with marko gfm
* only validate and parse note on elastic authored rules and add CLI description for new DR_BYPASS_NOTE_VALIDATION_AND_PARSE environment variable
Co-authored-by: brokensound77 <brokensound77@users.noreply.github.com>
Removed changes from:
- rules/cross-platform/impact_hosts_file_modified.toml
- rules/integrations/google_workspace/application_added_to_google_workspace_domain.toml
- rules/integrations/google_workspace/domain_added_to_google_workspace_trusted_domains.toml
- rules/integrations/google_workspace/google_workspace_admin_role_deletion.toml
- rules/integrations/google_workspace/google_workspace_mfa_enforcement_disabled.toml
- rules/integrations/google_workspace/google_workspace_policy_modified.toml
- rules/integrations/google_workspace/mfa_disabled_for_google_workspace_organization.toml
- rules/integrations/google_workspace/persistence_google_workspace_admin_role_assigned_to_user.toml
- rules/integrations/google_workspace/persistence_google_workspace_api_access_granted_via_domain_wide_delegation_of_authority.toml
- rules/integrations/google_workspace/persistence_google_workspace_custom_admin_role_created.toml
- rules/integrations/google_workspace/persistence_google_workspace_role_modified.toml
- rules/integrations/kubernetes/execution_user_exec_to_pod.toml
- rules/windows/credential_access_lsass_memdump_file_created.toml
- rules/windows/defense_evasion_adding_the_hidden_file_attribute_with_via_attribexe.toml
- rules/windows/defense_evasion_execution_lolbas_wuauclt.toml
- rules/windows/defense_evasion_suspicious_certutil_commands.toml
- rules/windows/execution_command_shell_started_by_svchost.toml
(selectively cherry picked from commit a52751494e)
63 lines
2.3 KiB
TOML
63 lines
2.3 KiB
TOML
[metadata]
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creation_date = "2021/01/06"
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maturity = "production"
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updated_date = "2022/03/31"
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[rule]
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author = ["Elastic"]
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description = """
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Identifies the creation or modification of a K Desktop Environment (KDE) AutoStart script or desktop file that will
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execute upon each user logon. Adversaries may abuse this method for persistence.
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"""
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from = "now-9m"
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index = ["auditbeat-*", "logs-endpoint.events.*"]
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language = "eql"
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license = "Elastic License v2"
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name = "Persistence via KDE AutoStart Script or Desktop File Modification"
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note = """## Setup
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If enabling an EQL rule on a non-elastic-agent index (such as beats) for versions <8.2, events will not define `event.ingested` and default fallback for EQL rules was not added until 8.2, so you will need to add a custom pipeline to populate `event.ingested` to @timestamp for this rule to work.
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"""
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references = [
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"https://userbase.kde.org/System_Settings/Autostart",
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"https://www.amnesty.org/en/latest/research/2020/09/german-made-finspy-spyware-found-in-egypt-and-mac-and-linux-versions-revealed/",
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"https://www.intezer.com/blog/research/operation-electrorat-attacker-creates-fake-companies-to-drain-your-crypto-wallets/",
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]
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risk_score = 47
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rule_id = "e3e904b3-0a8e-4e68-86a8-977a163e21d3"
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severity = "medium"
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tags = ["Elastic", "Host", "Linux", "Threat Detection", "Persistence"]
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timestamp_override = "event.ingested"
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type = "eql"
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query = '''
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file where event.type != "deletion" and
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file.extension in ("sh", "desktop") and
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file.path :
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(
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"/home/*/.config/autostart/*", "/root/.config/autostart/*",
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"/home/*/.kde/Autostart/*", "/root/.kde/Autostart/*",
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"/home/*/.kde4/Autostart/*", "/root/.kde4/Autostart/*",
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"/home/*/.kde/share/autostart/*", "/root/.kde/share/autostart/*",
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"/home/*/.kde4/share/autostart/*", "/root/.kde4/share/autostart/*",
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"/home/*/.local/share/autostart/*", "/root/.local/share/autostart/*",
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"/home/*/.config/autostart-scripts/*", "/root/.config/autostart-scripts/*",
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"/etc/xdg/autostart/*", "/usr/share/autostart/*"
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)
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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.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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