feat: Security Event Logging Disabled Via MiniNt Registry Key#5257
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phantinuss merged 11 commits intoSigmaHQ:masterfrom Oct 1, 2025
Merged
feat: Security Event Logging Disabled Via MiniNt Registry Key#5257phantinuss merged 11 commits intoSigmaHQ:masterfrom
phantinuss merged 11 commits intoSigmaHQ:masterfrom
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frack113
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phantinuss
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Oct 1, 2025
rules/windows/process_creation/proc_creation_win_event_logging_disable_via_key_minint.yml
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rules/windows/process_creation/proc_creation_win_event_logging_disable_via_key_minint.yml
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rules/windows/process_creation/proc_creation_win_event_logging_disable_via_key_minint.yml
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rules/windows/process_creation/proc_creation_win_event_logging_disable_via_key_minint.yml
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rules/windows/registry/registry_set/registry_set_create_minint_key.yml
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rules/windows/registry/registry_set/registry_set_create_minint_key.yml
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rules/windows/registry/registry_set/registry_set_create_minint_key.yml
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Co-authored-by: phantinuss <79651203+phantinuss@users.noreply.github.com>
…_key.yml Co-authored-by: phantinuss <79651203+phantinuss@users.noreply.github.com>
phantinuss
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Pull Request Overview
This PR adds security detection rules for identifying attempts to disable Windows Event Logging through the MiniNt registry key. The rules target a defense evasion technique where adversaries add the MiniNt registry key to stop the Windows Event Log service from writing events after a system reboot.
- Creates two new detection rules for the MiniNt registry key manipulation
- Updates an existing registry event rule with additional references and improved MITRE ATT&CK technique mapping
- Implements detection across process creation and registry modification event sources
Reviewed Changes
Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.
| File | Description |
|---|---|
| registry_set_create_minint_key.yml | New rule detecting registry modifications adding the MiniNt key |
| registry_event_disable_security_events_logging_adding_reg_key_minint.yml | Updated existing rule with additional reference and corrected MITRE technique ID |
| proc_creation_win_event_logging_disable_via_key_minint.yml | New rule detecting process execution attempts to create the MiniNt registry key |
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...stry/registry_event/registry_event_disable_security_events_logging_adding_reg_key_minint.yml
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Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
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Summary of the Pull Request
Security Event Logging Disabled Via MiniNt Registry Key
Changelog
new: Security Event Logging Disabled Via MiniNt Registry Key - Process
new: Security Event Logging Disabled Via MiniNt Registry Key - Registry Set
Example Log Event
Fixed Issues
SigmaHQ Rule Creation Conventions