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Edgecution malicious Microsoft Edge extension backdoor activity

Malware Activity
First reported
Last updated
Happening score
H score 23
1 unique sources, 1 articles

Summary

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The Edgecution malware is extending a Microsoft Edge browser foothold into host-level compromise by abusing Chrome Native Messaging and launching a Python-based backdoor. The activity matters because it turns a browser extension into a bridge for shell, PowerShell, and arbitrary Python execution on infected systems. The delivery chain uses fake Microsoft Teams IT-support lures and update-themed pages to push malicious scripts and ZIP payloads. The operation is tied to ransomware-related access tooling and is designed to increase persistence and control on compromised Windows hosts.

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Timeline

  1. 24.06.2026 23:58 2 articles · 2h ago

    Edgecution escapes the Microsoft Edge sandbox and launches a Python backdoor

    Initial Disclosure

    Zscaler identifies Edgecution, a malicious Microsoft Edge extension linked to an initial access broker tied to Payouts Kings, as a browser-to-host malware chain that starts with Microsoft Teams IT-support lures and fake Microsoft update pages and ends with Chrome Native Messaging launching a Python-based backdoor on compromised Windows hosts.

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