Which versions of cisco-github-simple are malicious?

The following npm versions of cisco-github-simple are flagged malicious: 1.0.1. Treat any of these as compromised.

How do I remediate cisco-github-simple if I installed it?

cisco-github-simple establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.

I already installed cisco-github-simple — how do I know if it already compromised me?

If cisco-github-simple 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.

Is cisco-github-simple part of a known attack campaign?

Yes — cisco-github-simple is associated with the IN-MAL-2026-020284 campaign. Packages in the same campaign often share infrastructure and payloads, so check whether any related packages are also in your dependency tree.

How do I find cisco-github-simple across my projects, lockfiles, and CI pipelines?

Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for cisco-github-simple (version 1.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging cisco-github-simple across your stack and pipelines.

Malicious package

cisco-github-simplenpm

cisco-github-simple is a confirmed malicious npm package (MAL-2026-16381) that opens a backdoor for remote access (malicious version 1.0.1). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in cisco-github-simple (npm)

MAL-2026-16381

Immediate action

Remove the package, then rotate any secrets the build/runtime could reach.

npm uninstall cisco-github-simple

What this malware does

The package declares a preinstall lifecycle hook (node index.js) that runs automatically on npm install. index.js collects host reconnaissance from the installer — os.hostname(), os.userInfo().username, home directory, DNS server list, and the contents of /etc/passwd and /etc/hosts, together with the package.json — assembles them into a JSON tracking payload, and POSTs the payload over HTTPS to the Burp Collaborator subdomain prk15yh0sbkd1305h200c2wv5mbhz7nw.oastify.com. The package name impersonates Cisco's GitHub namespace, consistent with a dependency-confusion recon beacon targeting internal Cisco builds. There is no legitimate purpose served by the code; installing or building against this package leaks sensitive host and account information to an attacker-controlled out-of-band domain.

Malicious versions

1 flagged

1.0.1

Indicators of compromise (SHA-256)

2281890525d50138fab3030e71561f01f898fe9b97d56d2a894f1abf30632205

Detection & response playbook

Backdoor / remote access

Find it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for cisco-github-simple (version 1.0.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging cisco-github-simple across your stack and pipelines.
If you installed it — respond
cisco-github-simple establishes remote access, so treat any host that installed it as fully compromised. Isolate the machine, remove the package, rotate all credentials it could reach, and rebuild from a trusted image rather than cleaning in place — a backdoor may have planted additional persistence.
Did it already run?
If cisco-github-simple 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 cisco-github-simple 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

No. cisco-github-simple on npm has been identified as a malicious package (version 1.0.1 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-020284

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks cisco-github-simple-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.

Malware detection Runtime egress monitoring

Explore

All malware advisories How O3 detects malware Vulnerability database