Query: write Sigma for Detects the execution of "Wlrmdr.exe" with the "-u" command line flag which allows anything passed to it to be an argume
Matching passage: Sigma rule: Detects the execution of "Wlrmdr.exe" with the "-u" command line flag which allows anything passed to it to be an argume. Logsource: windows / process_creation. Rule: title: Wlrmdr.EXE Uncommon Argument Or Child Process id: 9cfc00b6-bfb7-49ce-9781-ef78503154bb status: experimental description: 'Detects the execution of "Wlrmdr.exe" with the "-u" command line flag which allows anything passed to it to be an argument of the ShellExecute API, which would allow an attacker to execute arbitrary binaries. This detection also focuses on any uncommon child processes spawned from "Wlrmdr.exe" as a supplement for those that posses "ParentImage" telemetry. ' references: - https://twitter.com/0gtweet/status/1493963591745220608?s=20&t=xUg9DsZhJy1q9bPTUWgeIQ - https://lolbas-project.github.io/lolbas/Binaries/Wlrmdr/ author: frack113, manasmbellani date: 2022-02-16 modified: 2025-10-31 tags: - attack.stealth - attack.t1218 logsource: category: process_creation product: windows detection: selection_parent: ParentImage|endswith: \wlrmdr.exe selection_child_img: - Image|endswith: \wlrmdr.exe - OriginalFileName: WLRMNDR.EXE selection_child_cli_flags_s: CommandLine|contains|windash: '-s ' selection_child_cli_flags_f: CommandLine|contains|windash: '-f ' selection_child_cli_flags_t: CommandLine|contains|windash: '-t ' selection_child_cli_flags_m: CommandLine|contains|windash: '-m ' selection_child_cli_flags_a: CommandLine|contains|windash: '-a ' selection_child_cli_flags_u: CommandLine|contains|windash: '-u ' filter_main_winlogon: ParentImage: C:\Windows\System32\winlogon.exe filter_main_empty: ParentImage: - '' - '-' filter_main_null: ParentImage: null condition: selection_parent or (all of selection_child_* and not 1 of filter_main_*) falsepositives: - Unknown level: medium
Near-miss passage: Sigma rule: Detects the setting of the "DumpType" registry value to "2" which stands for a "Full Dump". Technique such as LSASS Shti. Logsource: windows / registry_set. Rule: title: Lsass Full Dump Request Via DumpType Registry Settings id: 33efc23c-6ea2-4503-8cfe-bdf82ce8f719 status: test description: Detects the setting of the "DumpType" registry value to "2" which stands for a "Full Dump". Technique such as LSASS Shtinkering requires this value to be "2" in order to dump LSASS. references: - https://github.com/deepinstinct/Lsass-Shtinkering - https://learn.microsoft.com/en-us/windows/win32/wer/collecting-user-mode-dumps - https://media.defcon.org/DEF%20CON%2030/DEF%20CON%2030%20presentations/Asaf%20Gilboa%20-%20LSASS%20Shtinkering%20Abusing%20Windows%20Error%20Reporting%20to%20Dump%20LSASS.pdf author: '@pbssubhash' date: 2022-12-08 modified: 2023-08-17 tags: - attack.credential-access - attack.t1003.001 logsource: category: registry_set product: windows detection: selection: TargetObject|contains: - \SOFTWARE\Microsoft\Windows\Windows Error Reporting\LocalDumps\DumpType - \SOFTWARE\Microsoft\Windows\Windows Error Reporting\LocalDumps\lsass.exe\DumpType Details: DWORD (0x00000002) condition: selection falsepositives: - Legitimate application that needs to do a full dump of their process level: high