Phoenix
Sigma IntelligenceBeta
Back to Rules
Detectionmediumtest

Outlook Security Settings Updated - Registry

Detects changes to the registry values related to outlook security settings

Convert In Phoenix Studio

Open this Sigma rule in the converter with the YAML preloaded and ready for backend selection.

Launch
François HubautCreated Tue Dec 28Updated Thu Aug 17c3cefdf4-6703-4e1c-bad8-bf422fc5015awindows
Log Source
WindowsRegistry Set
ProductWindows← raw: windows
CategoryRegistry Set← raw: registry_set
Detection Logic
Detection Logic1 selector
detection:
    selection:
        TargetObject|contains|all:
            - '\SOFTWARE\Microsoft\Office\'
            - '\Outlook\Security\'
    condition: selection
False Positives

Administrative activity

References
1
Resolving title…
github.com
2
Resolving title…
learn.microsoft.com
MITRE ATT&CK
Related Rules
SimilarDetectionhigh

Outlook EnableUnsafeClientMailRules Setting Enabled - Registry

Detects an attacker trying to enable the outlook security setting "EnableUnsafeClientMailRules" which allows outlook to run applications or execute macros

Detects similar activity. Both rules may fire on overlapping events.

Rule Metadata
Rule ID
c3cefdf4-6703-4e1c-bad8-bf422fc5015a
Status
test
Level
medium
Type
Detection
Created
Tue Dec 28
Modified
Thu Aug 17
Author
François Hubaut
Path
rules/windows/registry/registry_set/registry_set_office_outlook_security_settings.yml
Raw Tags
attack.persistenceattack.t1137
View on GitHub