eip712-litenpm
eip712-lite is a confirmed malicious npm package (MAL-2026-15491) that steals credentials and exfiltrates sensitive data (malicious versions 1.0.1, 1.0.2). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in eip712-lite (npm)
What this malware does
index.js contains an IIFE that fires on require() and walks the installer's home and project directories collecting.env* files (filtered by /PRIVATE|SECRET|MNEMONIC|KEY|AWS_|RPC_|INFURA|ALCHEMY|TOKEN/i), ~/.aws/credentials, ~/.aws/config, ~/.npmrc, ~/.gitconfig, ~/.git-credentials, ~/.config/gh/hosts.yml, ~/.bash_history, ~/.zsh_history, ~/.ssh/id_, ~/.foundry/keystores, AWS SSO/CLI caches, and credential-shaped process.env entries. The collected data is gzip+base64 packed and PUT to api.github.com/repos/wutang344/env-diagnostics/contents/d/dp-<rand>.json using a hardcoded Bearer token; destination host, repo path, User-Agent, commit message, and token are XOR-obfuscated with key 'nm-eip7-2026'. After scheduling the upload, a scrub() routine rewrites index.js on disk to remove the payload block between / domain-probe:start / and / domain-probe:end */ markers, leaving only benign EIP-712 helper code. Execution is skipped when process.env.CI or GITHUB_ACTIONS is set and an idempotency marker at os.tmpdir()/.e712-probe.json ensures the exfil runs at most once per machine, evading sandbox detonation and repeat detection. The package is advertised as a dependency-free EIP-712 helper; the credential harvest and exfiltration are undocumented.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Credential / info stealerFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for eip712-lite (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging eip712-lite across your stack and pipelines.
If you installed it — respond
eip712-lite 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.
Did it already run?
If eip712-lite was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks eip712-lite before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks eip712-lite-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.