cvmbxcjiasdgnpm
cvmbxcjiasdg is a confirmed malicious npm package (MAL-2026-13799) that typosquats a legitimate package to trick installs (malicious versions 1.0.0, 1.0.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in cvmbxcjiasdg (npm)
What this malware does
The package contains a single index.html file declared as main and no JavaScript entry point, lifecycle scripts (preinstall/install/postinstall/prepare), or library exports. The HTML mimics a Cloudflare 'Just a moment...' Turnstile challenge and embeds obfuscator.io-style JavaScript with a custom base64 string array. When the fake challenge completes, decoded strings are used to construct a URL via new URL(...), the current page's query parameters are forwarded via URLSearchParams(window.location.search).forEach(...targetUrl.searchParams.append...), and the browser is navigated with window.location.replace(targetUrl.toString()). The redirect only executes in a browser that renders index.html; npm install and require() of this package run no code and touch no installer resources. The artifact appears to be an abuse of the npm registry as a static host for a phishing/redirect lure rather than an attack on developers installing the package.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
TyposquatFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for cvmbxcjiasdg (2 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging cvmbxcjiasdg across your stack and pipelines.
If you installed it — respond
cvmbxcjiasdg is a typosquat — you almost certainly intended a legitimately-named package. Remove cvmbxcjiasdg, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.
Did it already run?
If cvmbxcjiasdg 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 cvmbxcjiasdg 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 cvmbxcjiasdg-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.