Sigma rule: Modification of IE Registry Settings

Rule

Title

Modification of IE Registry Settings

Status

test

Level

low

Author

frack113

Date

2022-01-22

Modified

2025-10-22

File

rules/windows/registry/registry_set/registry_set_persistence_ie.yml

Commit

ccbb0369507f796db0b0ae6854c8a2be471b9d84

Detects modification of the registry settings used for Internet Explorer and other Windows components that use these settings. An attacker can abuse this registry key to add a domain to the trusted sites Zone or insert JavaScript for persistence

Log source

product

windows

category

registry_set

Detection

selection_domains:
    TargetObject|contains: '\Software\Microsoft\Windows\CurrentVersion\Internet Settings'
filter_main_dword:
    Details|startswith: 'DWORD'
filter_main_null:
    Details: null
filter_main_office:
    Details:
        - 'Cookie:'
        - 'Visited:'
        - '(Empty)'
filter_main_path:
    TargetObject|contains:
        - '\Cache'
        - '\ZoneMap'
        - '\WpadDecision'
filter_main_binary:
    Details: 'Binary Data'
filter_optional_accepted_documents:
    # Spotted during Office installations
    TargetObject|contains: '\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Accepted Documents'
condition: selection_domains and not 1 of filter_main_* and not 1 of filter_optional_*

False positives (as the rule lists them)

• Unknown

Tags

• attack.persistence
• attack.defense-impairment
• attack.t1112

MITRE ATT&CK ids this rule names

• T1112

References

• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1112/T1112.md#atomic-test-4---add-domain-to-trusted-sites-zone
• https://github.com/redcanaryco/atomic-red-team/blob/f339e7da7d05f6057fdfcdd3742bfcf365fee2a9/atomics/T1112/T1112.md#atomic-test-5---javascript-in-registry

Read on 2026-11-03T00:58:21.399Z under licence sigma-drl-1.1@d5f4c36a from https://github.com/SigmaHQ/sigma/blob/ccbb0369507f796db0b0ae6854c8a2be471b9d84/rules/windows/registry/registry_set/registry_set_persistence_ie.yml