Query: rule covering Detects execution of commands that leverage the "mshtml.dll" RunHTMLApplication export to run arbitrary code via differe
Matching passage: Sigma rule: Detects execution of commands that leverage the "mshtml.dll" RunHTMLApplication export to run arbitrary code via differe. Logsource: windows / process_creation. Rule: title: Mshtml.DLL RunHTMLApplication Suspicious Usage id: 4782eb5a-a513-4523-a0ac-f3082b26ac5c related: - id: 9f06447a-a33a-4cbe-a94f-a3f43184a7a3 type: obsolete - id: 73fcad2e-ff14-4c38-b11d-4172c8ac86c7 type: obsolete status: test description: 'Detects execution of commands that leverage the "mshtml.dll" RunHTMLApplication export to run arbitrary code via different protocol handlers (vbscript, javascript, file, http...) ' references: - https://twitter.com/n1nj4sec/status/1421190238081277959 - https://hyp3rlinx.altervista.org/advisories/MICROSOFT_WINDOWS_DEFENDER_TROJAN.WIN32.POWESSERE.G_MITIGATION_BYPASS_PART2.txt - http://hyp3rlinx.altervista.org/advisories/MICROSOFT_WINDOWS_DEFENDER_DETECTION_BYPASS.txt author: Nasreddine Bencherchali (Nextron Systems), Florian Roth (Nextron Systems), Josh Nickels, frack113, Zaw Min Htun (ZETA) date: 2022-08-14 modified: 2024-02-23 tags: - attack.execution - attack.stealth logsource: category: process_creation product: windows detection: selection: CommandLine|contains|all: - \..\ - mshtml CommandLine|contains: - '#135' - RunHTMLApplication condition: selection falsepositives: - Unlikely level: high
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