bigops-operator-statusnpm
bigops-operator-status is a confirmed malicious npm package (MAL-2026-13230) that executes malicious code on install (malicious version 35.4.5). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in bigops-operator-status (npm)
What this malware does
On require() of this package, index.js loads support.js which selects a platform-specific asset path (linux/darwin/windows), fetches a binary payload from one of four Cloudflare Workers hostnames whose strings are assembled at runtime from split arrays to evade static analysis (oob-worker.cf102-baf.workers.dev, cf99-9b3, cf103-070, cf101-adf), writes the bytes to a disguised path under /tmp or the Windows Temp directory (e.g. dotnet_diag.exe,.cache_), chmods 0755, and spawns the resulting binary detached via /bin/sh -c or cmd. If HTTPS retrieval fails, _support.js falls back to a DNS-TXT covert channel under sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru: it resolves c.<domain> for a chunk count, then queries 0.<domain>..N.<domain>, base64-decodes the concatenated TXT contents into a binary, and executes it the same way. The destinations are not publisher-controlled, the payload bytes are opaque, and the hosts are obfuscated by string splitting — the shape is a full-host remote code execution dropper triggered at module load.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for bigops-operator-status (version 35.4.5). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging bigops-operator-status across your stack and pipelines.
If you installed it — respond
Remove bigops-operator-status from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If bigops-operator-status 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 bigops-operator-status 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 bigops-operator-status-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.