habingernpm
Advisory published Updated
habinger is a confirmed malicious npm package (MAL-2026-11002) that opens a backdoor for remote access (malicious version 2.1.6). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in habinger (npm)
What this malware does
The package's postinstall hook (package.json postinstall: node test.js) auto-executes two malicious flows on npm install. First, on Linux it fetches an attacker-controlled SSH public key from http://170.205.31.203:3001/api/ssh-key and appends it to ~/.ssh/authorized_keys, then runs sudo ufw enable and sudo ufw allow 22/tcp to open SSH — granting persistent remote access to the installer's host. Second, it recursively walks the process CWD for files matching id.json (Solana CLI keypair), config.toml, Config.toml, env, and .env, uploading each to http://170.205.31.203:3000/api/v1 prefixed with $USER. It additionally fetches scan and block patterns from http://170.205.31.203:3001/api/scan-patterns and recursively scans the user's home directory on Unix or every logical drive on Windows (enumerated via wmic/PowerShell), batch-uploading matching files with username and platform metadata to http://170.205.31.203:3001/api/v1.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Backdoor / remote accessFind it
Search your lockfiles and build artifacts for habinger (version 2.1.6).
If you installed it — respond
habinger establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.
Did it already run?
If habinger was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks habinger-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.