Query: detect Detects execution of Cmdl32 with the "/vpn" and "/lan" flags. Attackers can abuse this utility in order to download arbi in logs
Matching passage: Sigma rule: Detects execution of Cmdl32 with the "/vpn" and "/lan" flags. Attackers can abuse this utility in order to download arbi. Logsource: windows / process_creation. Rule: title: Potential Arbitrary File Download Via Cmdl32.EXE id: f37aba28-a9e6-4045-882c-d5004043b337 status: test description: 'Detects execution of Cmdl32 with the "/vpn" and "/lan" flags. Attackers can abuse this utility in order to download arbitrary files via a configuration file. Inspect the location and the content of the file passed as an argument in order to determine if it is suspicious. ' references: - https://lolbas-project.github.io/lolbas/Binaries/Cmdl32/ - https://twitter.com/SwiftOnSecurity/status/1455897435063074824 - https://github.com/LOLBAS-Project/LOLBAS/pull/151 author: frack113 date: 2021-11-03 modified: 2024-04-22 tags: - attack.execution - attack.stealth - attack.t1218 - attack.t1202 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \cmdl32.exe - OriginalFileName: CMDL32.EXE selection_cli: CommandLine|contains|all: - /vpn - /lan condition: all of selection_* falsepositives: - Unknown level: medium
Near-miss 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