Which versions of sysnode are malicious?

The following npm versions of sysnode are flagged malicious: 1.0.25. Treat any of these as compromised.

How do I remediate sysnode if I installed it?

sysnode 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.

I already installed sysnode — how do I know if it already compromised me?

If sysnode 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 sysnode part of a known attack campaign?

Yes — sysnode is associated with the IN-MAL-2026-004522 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 sysnode across my projects, lockfiles, and CI pipelines?

Search your lockfiles and build artifacts for sysnode (version 1.0.25).

Malicious package

sysnodenpm

Advisory published May 24, 2026Updated May 26, 2026

sysnode is a confirmed malicious npm package (MAL-2026-4678) that steals credentials and exfiltrates sensitive data (malicious version 1.0.25). Do not install it — remove it immediately and rotate any exposed credentials.

Malicious code in sysnode (npm)

MAL-2026-4678

Immediate action

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

npm uninstall sysnode

What this malware does

Package self-describes as a 'System binary configuration tool' but on invocation (CLI/bin entry or require) it silently bootstraps a full surveillance stack on Windows. index.js:42-47 uses winget and, as fallback, curls https://www.python.org/ftp/python/3.12.3/python-3.12.3-amd64.exe to %TEMP% and runs the installer with /quiet InstallAllUsers=0 PrependPath=1 to avoid UAC and any visible UI. It then pip-installs keyboard, pyperclip, mss, pyautogui, uiautomation, and comtypes — the canonical keylogger / clipboard-scrape / screen-capture / UI-automation library set — and spawns a pyarmor 9.2.4 trial-encrypted pointer.py (loaded via pyarmor_runtime_000000.__pyarmor__ from a 624 KB native.pyd) with shell:false and a comment explicitly noting the goal of running without a CMD window. The actual capture/exfil logic is hidden inside the pyarmor blob and cannot be reviewed. The package's stated purpose, generic keywords, and placeholder author 'ABC' do not match observed behavior — a cover story for a Windows surveillance dropper.

Malicious versions

1 flagged

1.0.25

Indicators of compromise (SHA-256)

b1f5d271eb72dffa8868b2701aeb4aa7799ee9d7294f342e14682b6675114077

Detection & response playbook

Credential / info stealer

Find it
Search your lockfiles and build artifacts for sysnode (version 1.0.25).
If you installed it — respond
sysnode 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 sysnode 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. sysnode on npm has been identified as a malicious package (version 1.0.25 flagged). It should be removed immediately — do not install or keep it in your dependency tree.

Campaign

IN-MAL-2026-004522

References

npmjs.com

Credits

Amazon Inspector · finder

Detect & block this

O3 blocks sysnode-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the credential exfiltration and severs the channel.

Malware detection Runtime egress monitoring

Explore

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