Query: detection rule: Detects execution of EDR-Freeze, a tool that exploits the MiniDumpWriteDump function and WerFaultSecure.exe to suspend E
Matching passage: Sigma rule: Detects execution of EDR-Freeze, a tool that exploits the MiniDumpWriteDump function and WerFaultSecure.exe to suspend E. Logsource: windows / process_creation. Rule: title: Hacktool - EDR-Freeze Execution id: c598cc0c-9e70-4852-b9eb-8921af79f598 status: experimental description: 'Detects execution of EDR-Freeze, a tool that exploits the MiniDumpWriteDump function and WerFaultSecure.exe to suspend EDR and Antivirus processes on Windows. EDR-Freeze leverages a race-condition attack to put security processes into a dormant state by suspending WerFaultSecure at the moment it freezes the target process. This technique does not require kernel-level exploits or BYOVD, but instead abuses user-mode functionality to temporarily disable monitoring by EDR or Antimalware solutions. ' references: - https://www.zerosalarium.com/2025/09/EDR-Freeze-Puts-EDRs-Antivirus-Into-Coma.html - https://github.com/TwoSevenOneT/EDR-Freeze author: Swachchhanda Shrawan Poudel (Nextron Systems) date: 2025-09-24 modified: 2025-11-27 tags: - attack.defense-impairment - attack.t1685 logsource: category: process_creation product: windows detection: selection_img: Image|contains: - \EDR-Freeze - \EDRFreeze Image|endswith: .exe selection_imphash: Hashes|contains: - IMPHASH=1195F7935954A2CD09157390C33F8E8C - IMPHASH=129F58DE3D687FB7F012BF6C3D679997 - IMPHASH=2C617A175D0086251642C6619F7CC8BA - IMPHASH=8828F0B906F7844358FB92A899E9520F - IMPHASH=AF76D95157EC554DC1EF178E4E66D447 - IMPHASH=E1B04316B61ACA31DD52ABBEC0A37FD5 - IMPHASH=8B2D5B54AFCFEC60D54F6B31D80ED4A0 - IMPHASH=AB8BB31EDD91D2A05FE7B62A535E9EB7 condition: 1 of selection_* falsepositives: - Unlikely level: high regression_tests_path: regression_data/rules/windows/process_creation/proc_creation_win_hktl_edr_freeze/info.yml
Near-miss passage: Sigma rule: Detects usage of Windows Input Method Editor (IME) keyboard layout feature, which allows an attacker to load a DLL into. Logsource: windows / registry_set. Rule: title: Uncommon Extension In Keyboard Layout IME File Registry Value id: b888e3f2-224d-4435-b00b-9dd66e9ea1f1 related: - id: 9d8f9bb8-01af-4e15-a3a2-349071530530 type: derived status: test description: 'Detects usage of Windows Input Method Editor (IME) keyboard layout feature, which allows an attacker to load a DLL into the process after sending the WM_INPUTLANGCHANGEREQUEST message. Before doing this, the client needs to register the DLL in a special registry key that is assumed to implement this keyboard layout. This registry key should store a value named "Ime File" with a DLL path. IMEs are essential for languages that have more characters than can be represented on a standard keyboard, such as Chinese, Japanese, and Korean. ' references: - https://www.linkedin.com/pulse/guntior-story-advanced-bootkit-doesnt-rely-windows-disk-baranov-wue8e/ author: X__Junior (Nextron Systems) date: 2023-11-21 tags: - attack.defense-impairment - attack.t1685 logsource: product: windows category: registry_set detection: selection: TargetObject|contains|all: - \Control\Keyboard Layouts\ - Ime File filter_main_known_extension: Details|endswith: .ime condition: selection and not 1 of filter_main_* falsepositives: - IMEs are essential for languages that have more characters than can be represented on a standard keyboard, such as Chinese, Japanese, and Korean. level: high