Detect potential presence of a malicious file with a double extension (ASIM Web Session)

Double extension vulnerability is a significant concern in file uploads, as it can lead to various issues if an attacker successfully uploads a virus-infected file.

Detection logic

Detection requirements

Platform: Containers ESXi Linux macOS Network Devices Windows
The rule states no platform. This is derived from the 3 ATT&CK techniques it maps to.

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Detection rules

Detect potential presence of a malicious file with a double extension (ASIM Web Session)

Detection logic

Detection requirements

MITRE ATT&CK mappings

From the source

Licence

Authorship

Detection rules