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Detectionhightest

Python Function Execution Security Warning Disabled In Excel - Registry

Detects changes to the registry value "PythonFunctionWarnings" that would prevent any warnings or alerts from showing when Python functions are about to be executed. Threat actors could run malicious code through the new Microsoft Excel feature that allows Python to run within the spreadsheet.

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Launch
Nasreddine Bencherchali (Nextron Systems)Created Fri Aug 2317e53739-a1fc-4a62-b1b9-87711c2d5e44windows
Log Source
WindowsRegistry Set
ProductWindows← raw: windows
CategoryRegistry Set← raw: registry_set
Detection Logic
Detection Logic1 selector
detection:
    selection:
        TargetObject|contains: '\Microsoft\Office\'
        TargetObject|endswith: '\Excel\Security\PythonFunctionWarnings'
        Details: 'DWORD (0x00000001)'
    condition: selection
False Positives
Unknown

False positive likelihood has not been assessed. Additional context may be needed during triage.

References
1
Resolving title…
support.microsoft.com
MITRE ATT&CK
Related Rules
SimilarDetectionhigh

Python Function Execution Security Warning Disabled In Excel

Detects changes to the registry value "PythonFunctionWarnings" that would prevent any warnings or alerts from showing when Python functions are about to be executed. Threat actors could run malicious code through the new Microsoft Excel feature that allows Python to run within the spreadsheet.

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

Rule Metadata
Rule ID
17e53739-a1fc-4a62-b1b9-87711c2d5e44
Status
test
Level
high
Type
Detection
Created
Fri Aug 23
Author
Nasreddine Bencherchali (Nextron Systems)
Path
rules/windows/registry/registry_set/registry_set_office_disable_python_security_warnings.yml
Raw Tags
attack.defense-evasionattack.t1562.001
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