clickfix_npm_deliverynpm
Advisory published Updated
clickfix_npm_delivery is a confirmed malicious npm package (MAL-2026-17692) that opens a backdoor for remote access (malicious versions 1.0.0, 1.0.2). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in clickfix_npm_delivery (npm)
What this malware does
The package has no library surface. package.json declares main: index.html and the tarball ships only that HTML page, whose sole purpose is a ClickFix social-engineering lure. The page impersonates Cloudflare Turnstile (Cloudflare branding, a spoofed dash.cloudflare.com header, a fake 'Verify you are human' checkbox, and a fake 'Ray ID / 403 Forbidden' bot-detection screen). When the victim clicks the fake checkbox, the page silently writes a PowerShell one-liner to the clipboard and instructs the victim to press Win+R, paste, and hit Enter. The clipboard payload uses Start-BitsTransfer to download a script from http://ec2-65-2-4-62.ap-south-1.compute.amazonaws.com:443/script over plain HTTP into $env:temp\sys.ps1 and executes it via iex (gc $t -Raw), giving the operator of that EC2 host arbitrary code execution on the victim's Windows machine. The package name (clickfix_npm_delivery) and description ('Delivery POC Package') identify npm itself as the distribution channel for the lure.
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
Backdoor / remote accessFind it
Search your lockfiles and build artifacts for clickfix_npm_delivery (2 malicious versions).
If you installed it — respond
clickfix_npm_delivery 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 clickfix_npm_delivery 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
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks clickfix_npm_delivery-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.