another-very-long-namenpm
Advisory published Updated
another-very-long-name is a confirmed malicious npm package (MAL-2026-17767) that opens a backdoor for remote access (malicious versions 1.0.1, 1.1.0, 2.0.0…). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in another-very-long-name (npm)
What this malware does
[email protected] ships a beacon.cjs that is invoked both from the declared postinstall lifecycle script and from the module's require()-time entry (index.js). On execution it collects host identifiers — hostname, install path, process.cwd(), process.version, OS metadata, and the package name — and POSTs them as JSON to the hardcoded cleartext endpoint http://185.158.107.175:8787/_ah/dc. The package exposes no genuine functionality: index.js returns a Proxy whose get handler returns a no-op for every property so that bundlers consuming the package do not fail, and an author comment states that a build that completes and calls back is cleaner evidence. The destination is a bare-IP HTTP endpoint with no first-party relationship to any declared publisher, and the stub-plus-beacon shape is consistent with a dependency-confusion reconnaissance probe rather than a compatibility shim.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Backdoor / remote accessFind it
Search your lockfiles and build artifacts for another-very-long-name (4 malicious versions).
If you installed it — respond
another-very-long-name 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 another-very-long-name 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 another-very-long-name-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.