An open-source AI penetration testing tool named ARTEX, developed in China, has been discovered on attack servers targeting approximately 20 Japanese companies. GMO Cybersecurity, in collaboration with Ierae, identified the tool, with some of the affected companies having already disclosed breaches. CrowdStrike also observed ARTEX being used against Korean banks, with evidence suggesting the use of Claude Code sessions. Although the original developer has ceased work on ARTEX, its forks remain active. AI
IMPACT An AI-powered penetration testing tool is being actively used in cyberattacks against companies in Japan and South Korea, highlighting the evolving threat landscape.
RANK_REASON Discovery of an AI tool being used in cyberattacks.
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