Researchers at Palo Alto Networks’ Unit 42 are tracking two new malicious AI tools, WormGPT 4 and KawaiiGPT, that allow threat actors to craft phishing lures and generate ransomware code.
These tools are criminal alternatives to mainstream AI tools like ChatGPT, with no safety guardrails to prevent users from using them for malicious activities. The latest version of WormGPT offers lifetime access for $220, or a monthly fee of $50.
“WormGPT 4’s language capabilities are not just about producing convincing text,” Unit 42 says. “By eliminating the tell-tale grammatical errors and awkward phrasing that often flag traditional phishing attempts, WormGPT 4 can generate a message that persuasively mimics a CEO or trusted vendor.
“This capability allows low-skilled attackers to launch sophisticated campaigns that are far more likely to bypass both automated email filters and human scrutiny. WormGPT 4’s availability is driven by a clear commercial strategy, contrasting sharply with the often free, unreliable nature of simple jailbreaks. The tool is highly accessible due to its easy-to-use platform and cheap subscription cost.”
KawaiiGPT offers similar functionalities, but is completely free on GitHub. Users can easily set up the tool on a Linux system and begin using it to assist in attacks.
“This removes the technical complexity associated with sourcing, configuring, and running custom LLMs, which often deters new users,” Unit 42 writes. “This ease of deployment and a ready-to-use command-line interface (CLI) lowers the required technical skills, background, and experience, potentially reaching a broader spectrum of users. This spectrum includes users who previously lacked the specialized expertise to engage with other malicious LLMs.”
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