Query: detection rule: Detects execution of WSASS, a tool used to dump LSASS memory on Windows systems by leveraging WER's (Windows Error Repor
Matching passage: Sigma rule: Detects execution of WSASS, a tool used to dump LSASS memory on Windows systems by leveraging WER's (Windows Error Repor. Logsource: windows / process_creation. Rule: title: HackTool - WSASS Execution id: 589ac73f-8e12-409c-964e-31a2f5775ae2 status: experimental description: 'Detects execution of WSASS, a tool used to dump LSASS memory on Windows systems by leveraging WER''s (Windows Error Reporting) WerFaultSecure.EXE to bypass PPL (Protected Process Light) protections. ' references: - https://github.com/TwoSevenOneT/WSASS - https://www.zerosalarium.com/2025/09/Dumping-LSASS-With-WER-On-Modern-Windows-11.html author: Swachchhanda Shrawan Poudel (Nextron Systems) date: 2025-11-23 modified: 2026-01-09 tags: - attack.credential-access - attack.t1003.001 logsource: category: process_creation product: windows detection: selection_img: Image|endswith: \wsass.exe selection_hash: Hashes|contains: IMPHASH=32F5095C9BBDCACF28FD4060EB4DFC42 selection_cli: CommandLine|re: (?i)\.exe[\"\']?\s+[^\"]{0,64}werfaultsecure\.exe[\"\']?\s+\d{2,10} condition: 1 of selection_* falsepositives: - Unlikely level: high regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_hktl_wsass/info.yml
Near-miss passage: Sigma rule: Detects tampering of AMSI (Anti-Malware Scan Interface) related registry values via command line tools such as reg.exe o. Logsource: windows / process_creation. Rule: title: Windows AMSI Related Registry Tampering Via CommandLine id: 7dbbcac2-57a0-45ac-b306-ff30a8bd2981 related: - id: aa37cbb0-da36-42cb-a90f-fdf216fc7467 type: similar status: experimental description: 'Detects tampering of AMSI (Anti-Malware Scan Interface) related registry values via command line tools such as reg.exe or PowerShell. AMSI provides a generic interface for applications and services to integrate with antimalware products. Adversaries may disable AMSI to evade detection of malicious scripts and code execution. ' references: - https://github.com/arttoolkit/arttoolkit.github.io/blob/16d6230d009e58fd6f773f5317fd4d14c1f26004/_wadcoms/AMSI-Bypass-Jscript_amsienable.md - https://mostafayahiax.medium.com/hunting-for-amsi-bypassing-methods-9886dda0bf9d - https://www.mdsec.co.uk/2019/02/macros-and-more-with-sharpshooter-v2-0/ author: Swachchhanda Shrawan Poudel (Nextron Systems) date: 2025-12-25 tags: - attack.defense-impairment - attack.t1685 logsource: category: process_creation product: windows detection: selection_key: CommandLine|contains|all: - \Software\Microsoft\Windows Script\Settings - AmsiEnable selection_reg_img: - Image|endswith: \reg.exe - OriginalFileName: reg.exe selection_reg_cmd: CommandLine|contains: add selection_powershell_img: - Image|endswith: - \powershell.exe - \pwsh.exe - OriginalFileName: - PowerShell.EXE - pwsh.dll selection_powershell_cmd: CommandLine|contains: - Set-ItemProperty - New-ItemProperty - 'sp ' condition: selection_key and (all of selection_powershell_* or all of selection_reg_*) falsepositives: - Unknown level: high regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_amsi_registry_tampering/info.yml simulation: - type: atomic-red-team name: AMSI Bypass - Create AMSIEnable Reg Key technique: T1562.001 atomic_guid: 728eca7b-0444-4f6f-ac36-437e3d751dc0