Query: Sigma rule for Detects execution of "msdt.exe" using an answer file which is simulating the legitimate way of calling msdt via "pcwrun.
Matching passage: Sigma rule: Detects execution of "msdt.exe" using an answer file which is simulating the legitimate way of calling msdt via "pcwrun.. Logsource: windows / process_creation. Rule: title: MSDT Execution Via Answer File id: 9c8c7000-3065-44a8-a555-79bcba5d9955 status: test description: 'Detects execution of "msdt.exe" using an answer file which is simulating the legitimate way of calling msdt via "pcwrun.exe" (For example from the compatibility tab). ' references: - https://lolbas-project.github.io/lolbas/Binaries/Msdt/ author: Nasreddine Bencherchali (Nextron Systems) date: 2022-06-13 modified: 2025-10-29 tags: - attack.stealth - attack.t1218 - attack.execution logsource: category: process_creation product: windows detection: selection: Image|endswith: \msdt.exe CommandLine|contains: \WINDOWS\diagnostics\index\PCWDiagnostic.xml CommandLine|contains|windash: ' -af ' filter_main_pcwrun: ParentImage|endswith: \pcwrun.exe condition: selection and not 1 of filter_main_* falsepositives: - Possible undocumented parents of "msdt" other than "pcwrun". level: high
Near-miss passage: Sigma rule: Detects suspicious FileFix execution patterns where users are tricked into running malicious commands through browser fi. Logsource: windows / process_creation. Rule: title: Suspicious FileFix Execution Pattern id: b5b29e4e-31fa-4fdf-b058-296e7a1aa0c2 related: - id: 4fee3d51-8069-4a4c-a0f7-924fcaff2c70 type: similar - id: 4be03877-d5b6-4520-85c9-a5911c0a656c type: obsolete status: experimental description: 'Detects suspicious FileFix execution patterns where users are tricked into running malicious commands through browser file upload dialog manipulation. This attack typically begins when users visit malicious websites impersonating legitimate services or news platforms, which may display fake CAPTCHA challenges or direct instructions to open file explorer and paste clipboard content. The clipboard content usually contains commands that download and execute malware, such as information stealing tools. ' references: - https://mrd0x.com/filefix-clickfix-alternative/ - https://expel.com/blog/cache-smuggling-when-a-picture-isnt-a-thousand-words/ - https://blog.checkpoint.com/research/filefix-the-new-social-engineering-attack-building-on-clickfix-tested-in-the-wild/ author: 0xFustang, Swachchhanda Shrawan Poudel (Nextron Systems) date: 2025-11-24 tags: - attack.execution - attack.t1204.004 logsource: category: process_creation product: windows detection: selection_exec_parent: ParentImage|endswith: - \brave.exe - \chrome.exe - \firefox.exe - \msedge.exe CommandLine|contains: '#' selection_cli_lolbin: CommandLine|contains: - '%comspec%' - bitsadmin - certutil - cmd - cscript - curl - finger - mshta - powershell - pwsh - regsvr32 - rundll32 - schtasks - wget - wscript selection_cli_captcha: CommandLine|contains: - account - anti-bot - botcheck - captcha - challenge - confirmation - fraud - human - identification - identificator - identity - robot - validation - verification - verify condition: selection_exec_parent and 1 of selection_cli_* falsepositives: - Legitimate use of PowerShell or other utilities launched from browser extensions or automation tools level: high