chai-as-nobjnpm
Advisory published Updated
chai-as-nobj is a confirmed malicious npm package (MAL-2026-2894) that opens a backdoor for remote access. Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in chai-as-nobj (npm)
What this malware does
chai-as-nobj is a malicious npm package that when imported downloads a C2 dropper from https://api.npoint[.]io/5b357f718ab4ee355003 and executes it (similar to malware in to chai-await-test).
The package chai-as-nobj was found to contain malicious code.
Malicious versions
Every published version of this package is considered malicious — remove it entirely.
Indicators of compromise (SHA-256)
Detection & response playbook
Backdoor / remote accessFind it
Search your lockfiles and build artifacts for chai-as-nobj (all published versions).
If you installed it — respond
chai-as-nobj 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 chai-as-nobj 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
References
Credits
- Amazon Inspector · finder
- indece · finder
Detect & block this
O3 blocks chai-as-nobj-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the C2 callback and severs the channel.