
Summary
This detection rule analyzes the execution behavior of the `rundll32.exe` process, particularly when it uses the `davclnt.dll` library to interact with remote WebDAV resources. The key command-line function invoked is `davsetcookie`, which indicates the possibility of exploiting the vulnerability identified as CVE-2023-23397, associated with Microsoft Outlook. If successfully executed by an attacker, this could lead to unauthorized remote connections, data exfiltration, or additional intrusions within the network. The rule utilizes data sources from Endpoint Detection and Response (EDR) systems, correlating process execution with network traffic to identify suspicious activities. The analytics are structured to filter through known legitimate processes to minimize false positives and improve detection accuracy.
Categories
- Endpoint
- Windows
- Cloud
Data Sources
- Process
- Network Traffic
ATT&CK Techniques
- T1048.003
Created: 2024-11-13