Glassworm Botnet Disrupted After Resilient C2 Infrastructure Takedown
In May 2026, a coordinated operation by CrowdStrike, Google, and The Shadowserver Foundation successfully disrupted the Glassworm botnet, which had been targeting software developers through the open-source supply chain since October 2025. The botnet employed resilient command-and-control (C2) infrastructure utilizing Solana blockchain transactions, BitTorrent Distributed Hash Table (DHT), Google Calendar events, and traditional virtual private servers (VPS). This sophisticated architecture enabled Glassworm to persistently deliver malicious payloads, compromising over 300 GitHub repositories and numerous npm packages, thereby posing significant risks to software supply chains. The takedown underscores a critical shift in cyber threats, with adversaries increasingly focusing on developers to infiltrate and compromise software supply chains. This incident highlights the necessity for enhanced security measures within development environments and the importance of safeguarding open-source ecosystems against such sophisticated attacks.
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