Jupiter Exchange has identified a malicious Chrome extension named 'Bull Checker' that targets users involved in Solana DeFi activities. This extension, which appeared to allow normal decentralized application interactions, was discovered to be siphoning tokens from users by redirecting completed transaction tokens to a different wallet. Reports of this malicious activity surfaced last week, affecting a small number of users. The extension specifically targets Solana memecoin traders, and users are advised to remove it immediately to prevent further token loss. The discovery has prompted warnings from various entities, including Jupiter Exchange, urging caution against installing suspicious browser extensions.