@assetshop/verify-clinpm
Advisory published Updated
@assetshop/verify-cli is a confirmed malicious npm package (MAL-2026-13881) that opens a backdoor for remote access (malicious versions 99.0.0, 99.0.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in @assetshop/verify-cli (npm)
What this malware does
On npm install, the package's preinstall hook executes index.js, which collects installer identity and host information — whoami (via execSync), os.hostname(), os.platform(), os.arch(), process.cwd(), os.homedir(), and Node version — and transmits them to a hardcoded Interactsh/OAST callback subdomain at 5f8a1ed70fb7761d678agw9bapayyyyyb.oast.site via an HTTPS GET (with the collected values placed in the URL path) and a DNS lookup of ${user}.${hostname}.assetshop-verify-cli.<oast-host>. The package name in the @assetshop scope combined with the OAST beacon shape is the standard dependency-confusion reconnaissance pattern used to prove internal-name resolution against a private registry.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Backdoor / remote accessFind it
Search your lockfiles and build artifacts for @assetshop/verify-cli (2 malicious versions).
If you installed it — respond
@assetshop/verify-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 @assetshop/verify-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
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks @assetshop/verify-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.