Query: detect Detects the usage of SystemSettingsAdminFlows.exe to disable Windows Defender. SystemSettingsAdminFlows.exe is a legitim in logs
Matching passage: Sigma rule: Detects the usage of SystemSettingsAdminFlows.exe to disable Windows Defender. SystemSettingsAdminFlows.exe is a legitim. Logsource: windows / process_creation. Rule: title: Windows Defender Disabled Via SystemSettingsAdminFlows.EXE id: da92713f-ca2d-4fab-8320-098013d3f43a status: experimental description: 'Detects the usage of SystemSettingsAdminFlows.exe to disable Windows Defender. SystemSettingsAdminFlows.exe is a legitimate Windows component used for administrative configuration tasks. However, attackers may abuse it to disable Windows Defender as part of their attack chain, especially in the context of ransomware or other malware campaigns. ' references: - https://thedfirreport.com/2026/02/23/apache-activemq-exploit-leads-to-lockbit-ransomware/ - https://www.huntress.com/blog/lolbin-to-inc-ransomware tags: - attack.defense-impairment - attack.t1685 author: Chirag Damani (KPMG India), Swachchhanda Shrawan Poudel (Nextron Systems) date: 2026-07-01 logsource: category: process_creation product: windows detection: selection_ssaf_img: - Image|endswith: \SystemSettingsAdminFlows.exe - OriginalFileName: SystemSettingsAdminFlows.EXE selection_ssaf_cli: CommandLine|contains: defender selection_cli_enable_opt: CommandLine|contains: - 'RTP ' - 'RealTimeProtection ' - 'DisableEnhancedNotifications ' selection_cli_enable_value: CommandLine|contains: '1' selection_cli_disable_opt: CommandLine|contains: - 'SubmitSamplesConsent ' - 'SpyNetReporting ' - 'DisableCDPUserAuthPolicy ' selection_cli_disable_value: CommandLine|contains: '0' condition: all of selection_ssaf_* and (all of selection_cli_enable_* or all of selection_cli_disable_*) falsepositives: - Legitimate turn off of Windows Defender by the technical users or administrators for troubleshooting or other purposes. level: high regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_lolbin_systemsettingsadminflows_defender_disable/info.yml
Near-miss passage: Sigma rule: Detects usage of the `mknod` syscall to create special files (e.g., character or block devices). Attackers or malware mi. Logsource: linux / auditd. Rule: title: Special File Creation via Mknod Syscall id: 710bdbce-495d-491d-9a8f-7d0d88d2b41e status: experimental description: 'Detects usage of the `mknod` syscall to create special files (e.g., character or block devices). Attackers or malware might use `mknod` to create fake devices, interact with kernel interfaces, or establish covert channels in Linux systems. Monitoring the use of `mknod` is important because this syscall is rarely used by legitimate applications, and it can be abused to bypass file system restrictions or create backdoors. ' references: - https://man7.org/linux/man-pages/man2/mknod.2.html - https://hopeness.medium.com/master-the-linux-mknod-command-a-comprehensive-guide-1c150a546aa8 author: Milad Cheraghi date: 2025-05-31 modified: 2025-12-05 tags: - attack.privilege-escalation - attack.persistence - attack.t1543.003 logsource: product: linux service: auditd detection: selection: type: SYSCALL SYSCALL: mknod condition: selection falsepositives: - Device creation by legitimate scripts or init systems (udevadm, MAKEDEV) - Container runtimes or security tools during initialization level: low