Calif Research Releases WeWorm Demo, Zero-Click Worm Spreading via WeChat Calls
Calif Research released a demo of WeWorm, described as the first zero-click worm to spread through WeChat calls on iOS and Android, requiring no victim interaction. The team used AI to find the bug and write the initial remote code execution exploit in about two days, with the worm built in one more week, highlighting AI's role in accelerating exploit development.
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Simon Willison
Today, we're releasing a demo of WeWorm, the first zero-click worm to spread through WeChat calls across iOS and Android. [...] The victim does not need to answer the call, or interact with their phone at all. Even if they do answer, they hear nothing, and the exploit still succeeds. [...] Working with AI, our team found the bug and wrote the first remote code execution (RCE) exploit in about two days. Building the worm took one more week. A worm at this scale used to be the kind of thing that took a larger team months. AI can already do most of the work here. Our team provided the judgment about what to target and how to test it safely. — Calif Research , WeWorm Tags: ai-security-research , ai , llms , security , generative-ai
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