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Malicious package

wallet-sdk-9npm

Advisory published Updated

wallet-sdk-9 is a confirmed malicious npm package (MAL-2026-5360) that steals credentials and exfiltrates sensitive data (malicious version 3.7.73). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in wallet-sdk-9 (npm)

MAL-2026-5360
Immediate action
Remove the package, then rotate any secrets the build/runtime could reach.
npm uninstall wallet-sdk-9

What this malware does

Crypto/SSH/wallet stealer, blockchain-helper-0 campaign sibling (c960+). postinstall auto-execs, src/index.js harvests ~/.ssh/id_rsa+id_ed25519+Sol/Eth/BTC/Tron/Sui/Aptos wallets+.env+seeds, self-labels "CRYPTO STEALER", exfils to SAME Telegram bot 8227918239 chat 6433587894 (not rotated). Campaign now uses inflated version (3.7.73) not 1.0.0.

On install (postinstall lifecycle hook) and on require of the main module, src/index.js scans the installer's home directory and current working directory for crypto wallet material (Solana id.json, Ethereum keystore, Bitcoin wallet.dat, Tron/Sui/Aptos wallets), SSH private keys (~/.ssh/id_rsa, ~/.ssh/id_ed25519), and project secrets (.env, mnemonic.txt, seed.txt, private.key). Discovered files are uploaded to api.telegram.org using a hardcoded bot token and chat_id (bot 8227918239, chat 6433587894) via sendDocument. An isTestEnvironment() guard at src/index.js:10-26 suppresses execution in CI and sandboxed environments by checking CI/GITHUB_ACTIONS/JENKINS_HOME/NODE_ENV markers, Docker-style 12-hex hostnames, and runner/sandbox/docker usernames, ensuring the payload only fires on real developer machines. The package self-labels its exfiltration message as a 'CRYPTO STEALER' and ships no legitimate wallet SDK functionality despite its name; metadata is placeholder ('Utility library', empty README, generic author) consistent with a lure targeting developers searching for wallet SDKs.

Malicious versions

1 flagged
3.7.73

Indicators of compromise (SHA-256)

dd38e082e2657a6a3f8ffbab9bbad8dc1e1f2c460bb65546640f818d3077dad6

Detection & response playbook

Credential / info stealer
  1. Find it

    Search your lockfiles and build artifacts for wallet-sdk-9 (version 3.7.73).

  2. If you installed it — respond

    wallet-sdk-9 is built to steal secrets, so assume every credential the build or runtime could read is compromised. Remove it from your project and lockfile, then rotate ALL exposed secrets — npm/registry tokens, cloud keys, CI/CD secrets, SSH keys, and any .env values — from a known-clean machine. Audit logs for unauthorized use of those credentials.

  3. Did it already run?

    If wallet-sdk-9 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. wallet-sdk-9 on npm has been identified as a malicious package (version 3.7.73 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-005350

References

Credits

  • Amazon Inspector · finder
  • SafeDep · finder

Detect & block this

O3 blocks wallet-sdk-9-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Explore

wallet-sdk-9 (npm) malicious package — MAL-2026-5360 | O3 Security