OpenSSF/OSV advisory MAL-2026-13739 confirms this npm version as malicious. Package impersonates Euler Labs' 'Ethereum Vault Connector' Solidity project but ships a Node.js credential stealer as index.js, invoked automatically via preinstall and postinstall lifecycle hooks. On install, index.js filters process.env for keys matching KEY/TOKEN/SECRET/PASS/PRIVATE/MNEMONIC/AWS/GITHUB/NPM/WALLET and reads standard installer credential paths (~/.aws/credentials, ~/.ssh/id_rsa, ~/.ssh/id_ed25519,...
Source
OpenSSF Malicious Packages via OSV
Summary
Malicious code in ethereum-vault-connector (npm)
Details
Package impersonates Euler Labs' 'Ethereum Vault Connector' Solidity project but ships a Node.js credential stealer as index.js, invoked automatically via preinstall and postinstall lifecycle hooks. On install, index.js filters process.env for keys matching KEY/TOKEN/SECRET/PASS/PRIVATE/MNEMONIC/AWS/GITHUB/NPM/WALLET and reads standard installer credential paths (~/.aws/credentials, ~/.ssh/id_rsa, ~/.ssh/id_ed25519, ~/.kube/config, ~/.docker/config.json, ~/.netrc, ~/.npmrc, ~/.git-credentials, ~/.config/gcloud, Solana/Sui/Anchor keys, ~/.foundry/keystores) and local.env files. Collected data is exfiltrated via a detached child node process that sleeps 60-240 seconds (to outlive the install sandbox) and POSTs a JSON body to https://webhook.site/326b0891-2093-4800-a4c1-686ce3e07b09. The script also bails out when hostname matches scan-/detonation/sandbox/ubuntu-fc-uvm patterns, username is scan/nonroot/sandbox, environment contains honey/canarytokens markers, or the npm registry is a known mirror — sandbox-evasion behavior confirming hostile intent.
Decision reason
OpenSSF Malicious Packages via OSV confirms ethereum-vault-connector@1.1.0 as malicious (MAL-2026-13739): Malicious code in ethereum-vault-connector (npm)