bolt-delivery-menu-appnpm
Advisory published Updated
bolt-delivery-menu-app is a confirmed malicious npm package (MAL-2026-4499) that opens a backdoor for remote access (malicious version 9.9.11). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in bolt-delivery-menu-app (npm)
What this malware does
Package executes a DNS-based beacon at both install time (package.json scripts.install runs node index.js) and on every require() of the module. lib/core.js reads os.userInfo().username, os.hostname(), and process.cwd(), concatenates them with a campaign tag into a single label, and triggers dns.resolve4 against that label under the attacker-controlled domain oob.sl4x0.xyz, leaking installer host identity over DNS (a channel chosen to bypass HTTP-egress controls). The C2 domain and Node built-in names (os, dns, process, resolve4) are stored as char-code arrays in lib/b02e30.js and lib/6ad264.js to defeat string-grep scanners. The package name bolt-delivery-menu-app impersonates the Bolt delivery brand while shipping generic 'Enterprise Utilities' boilerplate as its cover story, and the author email [email protected] resolves to the same domain as the exfil destination — the typosquat lure, the cover identity, and the C2 are one operation. README falsely claims 'No network requests'.
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 bolt-delivery-menu-app (version 9.9.11).
If you installed it — respond
bolt-delivery-menu-app 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 bolt-delivery-menu-app 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
- ReversingLabs · finder
Detect & block this
O3 blocks bolt-delivery-menu-app-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.