sigma-rules

collection_fortigate_config_download.toml

[New Rule] Fortigate (FG-IR-26-060) Detections (#5641 )

2026-01-30 10:16:34 -05:00

command_and_control_accepted_default_telnet_port_connection.toml

[Rule Tuning] Accepted Default Telnet Port Connection (#5737 )

2026-02-19 15:15:51 -05:00

command_and_control_cobalt_strike_beacon.toml

[FR] Generate investigation guides (#4358 )

2025-01-22 11:17:38 -06:00

command_and_control_cobalt_strike_default_teamserver_cert.toml

[Rule Tuning] Reduce Severity from Critical to High (#4637 )

2025-05-06 21:37:47 +05:30

command_and_control_download_rar_powershell_from_internet.toml

[FR] Generate investigation guides (#4358 )

2025-01-22 11:17:38 -06:00

command_and_control_fin7_c2_behavior.toml

[FR] Generate investigation guides (#4358 )

2025-01-22 11:17:38 -06:00

command_and_control_halfbaked_beacon.toml

[FR] Generate investigation guides (#4358 )

2025-01-22 11:17:38 -06:00

command_and_control_nat_traversal_port_activity.toml

[FR] Generate investigation guides (#4358 )

2025-01-22 11:17:38 -06:00

command_and_control_port_26_activity.toml

[FR] Generate investigation guides (#4358 )

2025-01-22 11:17:38 -06:00

command_and_control_rdp_remote_desktop_protocol_from_the_internet.toml

[FR] Generate investigation guides (#4358 )

2025-01-22 11:17:38 -06:00

command_and_control_vnc_virtual_network_computing_from_the_internet.toml

Refresh ecs, beats, integration manifests & schemas (#4699 )

2025-05-05 23:06:40 +05:30

command_and_control_vnc_virtual_network_computing_to_the_internet.toml

Refresh ecs, beats, integration manifests & schemas (#4699 )

2025-05-05 23:06:40 +05:30

defense_evasion_fortigate_overly_permissive_firewall_policy.toml

[New Rule] Fortigate (FG-IR-26-060) Detections (#5641 )

2026-01-30 10:16:34 -05:00

discovery_potential_network_sweep_detected.toml

Tuning to allow for greater flexibility in integration policy (#5774 )

2026-02-25 13:56:02 -05:00

discovery_potential_port_scan_detected.toml

Tuning to allow for greater flexibility in integration policy (#5774 )

2026-02-25 13:56:02 -05:00

discovery_potential_syn_port_scan_detected.toml

Tuning to allow for greater flexibility in integration policy (#5774 )

2026-02-25 13:56:02 -05:00

initial_access_fortigate_admin_login_multi_srcip.toml

[New Rule] Fortigate (FG-IR-26-060) Detections (#5641 )

2026-01-30 10:16:34 -05:00

initial_access_fortigate_sso_login_from_unusual_source.toml

[New Rule] Fortigate (FG-IR-26-060) Detections (#5641 )

2026-01-30 10:16:34 -05:00

initial_access_newly_observed_fortigate_admin_logon.toml

[New Rule] Fortigate (FG-IR-26-060) Detections (#5641 )

2026-01-30 10:16:34 -05:00

initial_access_react_server_components_rce_attempt.toml

[New Rule] React2Shell Detection (#5408 )

2025-12-05 18:37:54 -05:00

initial_access_react_server_rce_network_alerts.toml

[New] React2Shell Network Security Alert (#5445 )

2025-12-19 12:22:44 +00:00

initial_access_rpc_remote_procedure_call_from_the_internet.toml

Do not fire on denied events (#5805 )

2026-03-04 14:05:50 -05:00

initial_access_rpc_remote_procedure_call_to_the_internet.toml

[FR] Generate investigation guides (#4358 )

2025-01-22 11:17:38 -06:00

initial_access_smb_windows_file_sharing_activity_to_the_internet.toml

[Tuning] SMB (Windows File Sharing) Activity to the Internet (#5533 )

2026-01-08 18:52:09 -03:00

initial_access_unsecure_elasticsearch_node.toml

[FR] Generate investigation guides (#4358 )

2025-01-22 11:17:38 -06:00

lateral_movement_dns_server_overflow.toml

Back-porting Version Trimming (#3704 )

2024-05-23 00:45:10 +05:30

persistence_fortigate_admin_creation_unusual_source.toml

[New Rule] Fortigate (FG-IR-26-060) Detections (#5641 )

2026-01-30 10:16:34 -05:00

persistence_fortigate_sso_login_followed_by_admin_creation.toml

[New Rule] Fortigate (FG-IR-26-060) Detections (#5641 )

2026-01-30 10:16:34 -05:00

persistence_fortigate_super_admin_account_creation.toml

[New Rule] Fortigate (FG-IR-26-060) Detections (#5641 )

2026-01-30 10:16:34 -05:00