Which versions of comander-cli are malicious?

The following npm versions of comander-cli are flagged malicious: 1.0.0. Treat any of these as compromised.

How do I remediate comander-cli if I installed it?

comander-cli 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 comander-cli — how do I know if it already compromised me?

If comander-cli was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Is comander-cli part of a known attack campaign?

Yes — comander-cli is associated with the IN-MAL-2026-018232 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 comander-cli across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for comander-cli (version 1.0.0).

Malicious package

comander-clinpm

comander-cli is a confirmed malicious npm package (MAL-2026-14170) that opens a backdoor for remote access (malicious version 1.0.0). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in comander-cli (npm)

MAL-2026-14170

Immediate action

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

npm uninstall comander-cli

What this malware does

comander-cli is a typosquat of the popular 'commander' package whose index.js exports an empty object, providing no advertised functionality. All behavior is in scripts/postinstall.js, which runs automatically on npm install. The script XOR-decodes obfuscated byte arrays with the hardcoded key 'stf2026' to reconstruct a remote download URL and Windows shell/powershell bridge commands, fetches a Windows executable, writes it to %TEMP%\main.exe, and launches it detached with stdio ignored and windowsHide. On Linux hosts running under WSL (detected via WSL_DISTRO_NAME, WSLENV, and /proc/version containing 'microsoft'), the script assembles an obfuscated bridge command and passes it to child_process.exec to install and execute the payload on the underlying Windows host, escaping the WSL boundary. The postinstall also POSTs a JSON install beacon over plain HTTP to the hardcoded bare IP 193.70.34.101:20099/vote, with the host reconstructed from a split string array (['193','70','34','101'].join('.')) to evade literal-IP pattern matching. Obfuscated URLs, split-array IP construction, empty library surface, typosquat naming, and install-time detached execution of an attacker-supplied binary are all present.

Malicious versions

1 flagged

1.0.0

Indicators of compromise (SHA-256)

8296169da90107eec2a24127137eacf4a47dfca0c780111705aa542c3159d626

Detection & response playbook

Backdoor / remote access

Find it
Search your lockfiles and build artifacts for comander-cli (version 1.0.0).
If you installed it — respond
comander-cli 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 comander-cli was installed, its post-install payload may already have run. Removing the package does not undo that — check outbound connections and credential use from the install window onward.

Frequently asked questions

No. comander-cli on npm has been identified as a malicious package (version 1.0.0 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-018232

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks comander-cli-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

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