0enpm
0e is a confirmed malicious npm package (MAL-2025-49456) that steals credentials and exfiltrates sensitive data (malicious versions 0.0.1, 0.0.11, 0.0.12…). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in 0e (npm)
What this malware does
a static rule a static pattern match (critical) flagged index.js for containing a Telegram bot token, chat_id, sendMessage endpoint, a console Proxy wrapper, and JSON.stringify — the canonical shape of a console-exfiltration stealer, matching the credential-regex-fingerprints pattern. The analysis found that hardcoded imgbb API key, Telegram bot token, hardcoded chat IDs, and Firebase realtime-DB writes, with a Proxy installed over the global console that ships log arguments to attacker-controlled Telegram and Firebase endpoints. While the analysis downgraded this to 'info' because index.js is not the declared main and is purportedly syntactically broken, shipping a weaponized exfiltration module inside an npm tarball is itself a supply-chain threat: (a) any downstream consumer or tool that imports by path would be exposed if the syntax issue is fixed or if only part of the file is consumed, (b) the presence of a working Telegram token + chat id + Firebase endpoint indicates deliberate malicious intent, not accident. Additionally, shows the actual entrypoint test.js performs an import-time HTTPS ESM self-import from cdn.skypack.dev and an unconditional fetch to a Cloudinary URL, which is unusual load-time network activity for a package with no described purpose. Combined signals: placeholder/meaningless package (name '0e'), import-time remote fetch in entrypoint, and a bundled credential-exfiltration module — consistent with an attacker-staged package rather than a benign library.
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 0e (20 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging 0e across your stack and pipelines.
If you installed it — respond
0e 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 0e 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 0e 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 0e-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.