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Malicious package

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)

MAL-2026-11002
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall habinger

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

1 flagged
2.1.6

Indicators of compromise (SHA-256)

56e193021af7a2102362115c0e0f4564f90f3cf86a4e867b6f02ce266ba419e5

Detection & response playbook

Backdoor / remote access
  1. Find it

    Search your lockfiles and build artifacts for habinger (version 2.1.6).

  2. 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.

  3. 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

No. habinger on npm has been identified as a malicious package (version 2.1.6 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-010853

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.

Explore

habinger (npm) malicious package — MAL-2026-11002 | O3 Security