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TWINLOOT Abuses SharePoint and Teams to Steal Credentials and Move Across Networks

Cybersecurity researchers have disclosed details of a previously undocumented Python implant framework dubbed TWINLOOT. "TWINLOOT is a modular, PyArmor-hardened Python implant designed to operate its entire command-and-control infrastructure inside trusted Microsoft services," Ontinue said in a technical report shared with The Hacker News. "Tasking flows through SharePoint Online file dead-drops via the Microsoft Graph API. Interactive operator access routes through WebRTC DataChannels relayed by Microsoft Teams TURN servers." Traffic to and from the Graph API is driven by means of a headless instance of the victim's own Edge browser, thereby making it virtually indistinguishable from legitimate network activity. The implant is equipped to harvest Windows credentials using pixel-perfect…

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Source
thehackernews.com
Published
Aug 18, 2026
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