Query: Sigma rule for Detects disabling security tools
Matching passage: Sigma rule: Detects disabling security tools. Logsource: linux / process_creation. Rule: title: Disabling Security Tools id: e3a8a052-111f-4606-9aee-f28ebeb76776 status: test description: Detects disabling security tools references: - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1562.004/T1562.004.md author: Ömer Günal, Alejandro Ortuno, oscd.community date: 2020-06-17 modified: 2022-10-09 tags: - attack.defense-impairment - attack.t1686 logsource: category: process_creation product: linux detection: selection_iptables_1: Image|endswith: /service CommandLine|contains|all: - iptables - stop selection_iptables_2: Image|endswith: /service CommandLine|contains|all: - ip6tables - stop selection_iptables_3: Image|endswith: /chkconfig CommandLine|contains|all: - iptables - stop selection_iptables_4: Image|endswith: /chkconfig CommandLine|contains|all: - ip6tables - stop selection_firewall_1: Image|endswith: /systemctl CommandLine|contains|all: - firewalld - stop selection_firewall_2: Image|endswith: /systemctl CommandLine|contains|all: - firewalld - disable selection_carbonblack_1: Image|endswith: /service CommandLine|contains|all: - cbdaemon - stop selection_carbonblack_2: Image|endswith: /chkconfig CommandLine|contains|all: - cbdaemon - 'off' selection_carbonblack_3: Image|endswith: /systemctl CommandLine|contains|all: - cbdaemon - stop selection_carbonblack_4: Image|endswith: /systemctl CommandLine|contains|all: - cbdaemon - disable selection_selinux: Image|endswith: /setenforce CommandLine|contains: '0' selection_crowdstrike_1: Image|endswith: /systemctl CommandLine|contains|all: - stop - falcon-sensor selection_crowdstrike_2: Image|endswith: /systemctl CommandLine|contains|all: - disable - falcon-sensor condition: 1 of selection* falsepositives: - Legitimate administration activities level: medium
Near-miss passage: Sigma rule: Detects rundll32 execution where the DLL is located on a remote location (share). Threat actors can abuse the rundll32.e. Logsource: windows / process_creation. Rule: title: Rundll32 UNC Path Execution id: 5cdb711b-5740-4fb2-ba88-f7945027afac status: test description: 'Detects rundll32 execution where the DLL is located on a remote location (share). Threat actors can abuse the rundll32.exe binary to execute remote DLLs from a UNC pathh. ' references: - https://www.cybereason.com/blog/rundll32-the-infamous-proxy-for-executing-malicious-code - https://www.microsoft.com/en-us/security/blog/2026/07/16/acr-stealer-two-observed-intrusion-chains-amid-increased-threat-activity/ author: Nasreddine Bencherchali (Nextron Systems) date: 2022-08-10 modified: 2026-07-20 tags: - attack.execution - attack.lateral-movement - attack.stealth - attack.t1021.002 - attack.t1218.011 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \rundll32.exe - OriginalFileName: RUNDLL32.EXE - CommandLine|contains: rundll32 selection_cli: CommandLine|contains: - ' \\\\' - ' ''\\\\' - ' "\\\\' filter_main_cli_pipe: CommandLine|contains: \\\\.\\pipe condition: all of selection_* and not 1 of filter_main_* falsepositives: - Unlikely level: high regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_rundll32_unc_path/info.yml