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Rundll32.exe

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New Abuse of the ClickOnce Technology, Part 2: Stop Threat Actors from Clicking Once and Staying Forever

Threat actors are actively exploiting Microsoft's ClickOnce deployment technology, leveraging its low user interaction, lack of privilege requirements, and built-in update mechanisms to deliver malware, establish persistence, and maintain remote access, often executing payloads within legitimate rundll32.exe and dfsvc.exe processes.

PoC ClickOnce +8 microsoft persistence delivery windows endpoint
2r 7t 5i updated