Query: detect Detects a commandline containing references to the Microsoft Teams database or cookies files from a process other than T in logs
Matching passage: Sigma rule: Detects a commandline containing references to the Microsoft Teams database or cookies files from a process other than T. Logsource: windows / process_creation. Rule: title: Potentially Suspicious Command Targeting Teams Sensitive Files id: d2eb17db-1d39-41dc-b57f-301f6512fa75 status: test description: 'Detects a commandline containing references to the Microsoft Teams database or cookies files from a process other than Teams. The database might contain authentication tokens and other sensitive information about the logged in accounts. ' references: - https://www.bleepingcomputer.com/news/security/microsoft-teams-stores-auth-tokens-as-cleartext-in-windows-linux-macs/ - https://www.vectra.ai/blogpost/undermining-microsoft-teams-security-by-mining-tokens author: '@SerkinValery' date: 2022-09-16 modified: 2023-12-18 tags: - attack.credential-access - attack.t1528 logsource: product: windows category: process_creation detection: selection: CommandLine|contains: - \Microsoft\Teams\Cookies - \Microsoft\Teams\Local Storage\leveldb filter_main_legit_locations: Image|endswith: \Microsoft\Teams\current\Teams.exe condition: selection and not 1 of filter_main_* falsepositives: - Unknown level: medium
Near-miss passage: Sigma rule: Detects when a rule has been added to the Windows Firewall exception list. Logsource: windows / firewall-as. Rule: title: Uncommon New Firewall Rule Added In Windows Firewall Exception List id: cde0a575-7d3d-4a49-9817-b8004a7bf105 status: test description: Detects when a rule has been added to the Windows Firewall exception list references: - https://learn.microsoft.com/en-us/previous-versions/windows/it-pro/windows-server-2008-r2-and-2008/dd364427(v=ws.10) author: frack113 date: 2022-02-19 modified: 2025-10-08 tags: - attack.defense-impairment - attack.t1686.003 logsource: product: windows service: firewall-as detection: selection: EventID: - 2004 - 2071 - 2097 filter_main_block: Action: 2 filter_main_generic: ApplicationPath|startswith: - C:\Program Files (x86)\ - C:\Program Files\ - C:\Windows\System32\ - C:\Windows\SysWOW64\ - C:\Windows\WinSxS\ filter_main_covered_paths: ApplicationPath|contains: - C:\PerfLogs\ - C:\Temp\ - C:\Tmp\ - C:\Users\Public\ - C:\Windows\Tasks\ - C:\Windows\Temp\ - \AppData\Local\Temp\ filter_main_system_dllhost: ApplicationPath: System ModifyingApplication: C:\Windows\System32\dllhost.exe filter_main_tiworker: ModifyingApplication|startswith: C:\Windows\WinSxS\ ModifyingApplication|endswith: \TiWorker.exe filter_main_null: ApplicationPath: null filter_optional_no_path: ModifyingApplication: - C:\Windows\System32\svchost.exe - C:\Windows\System32\dllhost.exe ApplicationPath: '' filter_optional_msmpeng: - ModifyingApplication|startswith: - C:\ProgramData\Microsoft\Windows Defender\Platform\ - C:\Program Files\Windows Defender\ ModifyingApplication|endswith: \MsMpEng.exe - ApplicationPath|startswith: - C:\ProgramData\Microsoft\Windows Defender\Platform\ - C:\Program Files\Windows Defender\ ApplicationPath|endswith: \MsMpEng.exe condition: selection and not 1 of filter_main_* and not 1 of filter_optional_* level: medium