Researchers at Yeeth Security flagged malicious Visual Studio Code extensions named Solidity Pro that pose as tools for blockchain developers while stealing wallets and credentials. Early versions quietly fetched an encrypted payload from cloud infrastructure after a delay of up to three days and ran it outside the editor to evade quick checks. Later versions became full information stealers, collecting browser profiles, cryptocurrency wallets and seed phrases, source-control tokens, cloud credentials, API keys, and SSH private keys, then sending them out through a Telegram bot. The extensions were pulled from the Open VSX marketplace, but the project's code repository remained available.
Manifold Security found 77 malicious extensions on Open VSX, the open marketplace that editors like VSCodium, Cursor, and Windsurf pull extensions from, impersonating legitimate developer tools. Detected between July 26 and August 1, all 77 were linked through a shared exfiltration domain and common code. Fifty-eight sent only basic system information, while the other 19 performed deeper reconnaissance, exfiltrating developer, Git repository, and continuous integration metadata. Manifold found no access to source code, credentials, tokens, or SSH material and did not determine the campaign's goal. The extensions were pulled from Open VSX by August 3, but must still be removed manually from affected machines.
TrustStrike Labs