Query: write Sigma for Alert on when a user has performed an eDiscovery search or exported a PST file from the search. This PST file usually ha
Matching passage: Sigma rule: Alert on when a user has performed an eDiscovery search or exported a PST file from the search. This PST file usually ha. Logsource: m365 / threat_management. Rule: title: PST Export Alert Using eDiscovery Alert id: 18b88d08-d73e-4f21-bc25-4b9892a4fdd0 related: - id: 6897cd82-6664-11ed-9022-0242ac120002 type: similar status: test description: Alert on when a user has performed an eDiscovery search or exported a PST file from the search. This PST file usually has sensitive information including email body content references: - https://learn.microsoft.com/en-us/microsoft-365/compliance/alert-policies?view=o365-worldwide author: Sorina Ionescu date: 2022-02-08 modified: 2022-11-17 tags: - attack.collection - attack.t1114 logsource: service: threat_management product: m365 definition: Requires the 'eDiscovery search or exported' alert to be enabled detection: selection: eventSource: SecurityComplianceCenter eventName: eDiscovery search started or exported status: success condition: selection falsepositives: - PST export can be done for legitimate purposes but due to the sensitive nature of its content it must be monitored. level: medium
Near-miss passage: Sigma rule: Detects when adversaries stop services or processes by disabling their respective scheduled tasks in order to conduct da. Logsource: windows / process_creation. Rule: title: Disable Important Scheduled Task id: 9ac94dc8-9042-493c-ba45-3b5e7c86b980 related: - id: 7595ba94-cf3b-4471-aa03-4f6baa9e5fad type: similar - id: 9e3cb244-bdb8-4632-8c90-6079c8f4f16d type: similar status: test description: Detects when adversaries stop services or processes by disabling their respective scheduled tasks in order to conduct data destructive activities references: - https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1490/T1490.md#atomic-test-8---windows---disable-the-sr-scheduled-task - https://twitter.com/MichalKoczwara/status/1553634816016498688 - https://thedfirreport.com/2021/10/18/icedid-to-xinglocker-ransomware-in-24-hours/ author: frack113, Nasreddine Bencherchali (Nextron Systems), X__Junior date: 2021-12-26 modified: 2026-03-11 tags: - attack.impact - attack.t1489 logsource: category: process_creation product: windows detection: selection_img: - Image|endswith: \schtasks.exe - OriginalFileName: schtasks.exe selection_cli_disable: CommandLine|contains|windash: /disable selection_cli_task: CommandLine|contains: - \Windows\BitLocker - \Windows\ExploitGuard - \Windows\ExploitGuard\ExploitGuard MDM policy Refresh - \Windows\SystemRestore\SR - \Windows\UpdateOrchestrator\ - \Windows\Windows Defender\ - \Windows\WindowsBackup\ - \Windows\WindowsUpdate\ condition: all of selection_* falsepositives: - Unknown level: high regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_schtasks_disable/info.yml simulation: - type: atomic-red-team name: Windows - Disable the SR scheduled task technique: T1490 atomic_guid: 1c68c68d-83a4-4981-974e-8993055fa034