hd-key-generator is a malicious npm package designed as a typosquat of the legitimate hdkey package. When loaded, it harvests sensitive environment data including process environment variables, system hostname, user information, home directory, platform, current working directory, and package metadata. This information is serialized to JSON, base64-encoded, and exfiltrated via an HTTPS GET request to a Telegram Bot API endpoint controlled by the attacker. A temporary marker file prevents repeated data exfiltration. To avoid detection, if the legitimate hdkey package is present, hd-key-generator re-exports it to preserve expected functionality; otherwise, it returns stub functions. This behavior allows the attacker to collect secrets from the environment of the user or CI system installing the package. The affected version is exactly 1.6.3.

The malicious package can exfiltrate sensitive environment data including secrets such as AWS credentials, GitHub tokens, NPM tokens, and database credentials. This can lead to credential compromise and unauthorized access to cloud services, source code repositories, and databases. The attacker gains access to environment details that may facilitate further attacks or lateral movement. The package masquerades as a legitimate dependency, increasing the risk of inadvertent installation and data leakage.

No official patch or remediation is provided for hd-key-generator as it is a malicious typosquat package. The best mitigation is to avoid installing this package and instead use the legitimate hdkey package. Users and organizations should audit their dependencies to detect and remove hd-key-generator version 1.6.3 if present. Employing strict package name verification and using package integrity checks can help prevent typosquatting attacks. Monitor for any unexpected network traffic to Telegram Bot API endpoints from build or runtime environments.