Query: rule covering Detects the creation of potentially suspicious files by OpenEDR's ITSMService process. The ITSMService is responsible fo
Matching passage: Sigma rule: Detects the creation of potentially suspicious files by OpenEDR's ITSMService process. The ITSMService is responsible fo. Logsource: windows / file_event. Rule: title: Potentially Suspicious File Creation by OpenEDR's ITSMService id: 9e4b7d3a-6f2c-4e9a-8d1b-3c5e7a9f2b4d status: experimental description: 'Detects the creation of potentially suspicious files by OpenEDR''s ITSMService process. The ITSMService is responsible for remote management operations and can create files on the system through the Process Explorer or file management features. While legitimate for IT operations, creation of executable or script files could indicate unauthorized file uploads, data staging, or malicious file deployment. ' author: '@kostastsale' date: 2026-02-19 references: - https://kostas-ts.medium.com/detecting-abuse-of-openedrs-permissive-edr-trial-a-security-researcher-s-perspective-fc55bf53972c tags: - attack.command-and-control - attack.t1105 - attack.lateral-movement - attack.t1570 - attack.t1219 logsource: product: windows category: file_event detection: selection_process: Image|endswith: \COMODO\Endpoint Manager\ITSMService.exe selection_suspicious_extensions: TargetFilename|endswith: - .7z - .bat - .cmd - .com - .dll - .exe - .hta - .js - .pif - .ps1 - .rar - .scr - .vbe - .vbs - .zip condition: all of selection_* falsepositives: - Legitimate OpenEDR file management operations - Authorized remote file uploads by IT administrators - Software deployment through OpenEDR console level: medium
Near-miss passage: Sigma rule: Detects Schtask creations that point to a suspicious folder or an environment variable often used by malware. Logsource: windows / process_creation. Rule: title: Schedule Task Creation From Env Variable Or Potentially Suspicious Path Via Schtasks.EXE id: 81325ce1-be01-4250-944f-b4789644556f related: - id: 43f487f0-755f-4c2a-bce7-d6d2eec2fcf8 type: derived status: test description: Detects Schtask creations that point to a suspicious folder or an environment variable often used by malware references: - https://www.welivesecurity.com/2022/01/18/donot-go-do-not-respawn/ - https://www.joesandbox.com/analysis/514608/0/html#324415FF7D8324231381BAD48A052F85DF04 - https://blog.talosintelligence.com/gophish-powerrat-dcrat/ author: Florian Roth (Nextron Systems) date: 2022-02-21 modified: 2025-10-07 tags: - attack.privilege-escalation - attack.persistence - attack.execution - attack.t1053.005 logsource: product: windows category: process_creation detection: selection_1_create: Image|endswith: \schtasks.exe CommandLine|contains|windash: ' /create ' selection_1_all_folders: CommandLine|contains: - :\Perflogs - :\Users\All Users\ - :\Users\Default\ - :\Users\Public - :\Windows\Temp - \AppData\Local\ - \AppData\Roaming\ - '%AppData%' - '%Public%' selection_2_parent: ParentCommandLine|endswith: \svchost.exe -k netsvcs -p -s Schedule selection_2_some_folders: CommandLine|contains: - :\Perflogs - :\Windows\Temp - \Users\Public - '%Public%' filter_optional_other: - ParentCommandLine|contains: unattended.ini - CommandLine|contains: update_task.xml filter_optional_team_viewer: CommandLine|contains: /Create /TN TVInstallRestore /TR filter_optional_avira_install: CommandLine|contains|all: - '/Create /Xml ' - \Temp\.CR. - \Avira_Security_Installation.xml filter_optional_avira_other: CommandLine|contains|all: - /Create /F /TN - '/Xml ' - \Temp\ - Avira_ CommandLine|contains: - .tmp\UpdateFallbackTask.xml - .tmp\WatchdogServiceControlManagerTimeout.xml - .tmp\SystrayAutostart.xml - .tmp\MaintenanceTask.xml filter_optional_klite_codec: CommandLine|contains|all: - \Temp\ - '/Create /TN "klcp_update" /XML ' - \klcp_update_task.xml condition: ( all of selection_1_* or all of selection_2_* ) and not 1 of filter_optional_* falsepositives: - Benign scheduled tasks creations or executions that happen often during software installations - Software that uses the AppData folder and scheduled tasks to update the software in the AppData folders level: medium