@onum-releases/ixelnpm
Malicious code in @onum-releases/ixel (npm) Remove it immediately and rotate any exposed credentials.
What this malware does
On import, index.js reads os.hostname() and issues an HTTPS GET to ixel.<hostname>.200majoeu01dk02xnjdajro1isojc90y.oastify.com/ixel (oastify.com is Burp Suite's Collaborator out-of-band interaction domain). The hostname is embedded as a DNS subdomain label, so the DNS resolution alone leaks the installer's hostname to an attacker-controlled nameserver regardless of whether the HTTP request succeeds. Any developer machine or CI runner that require()s this package — directly or transitively — sends a host identifier to the operator of the configured Collaborator instance. The package.json description ("Security PoC placeholder - benign, no runtime payload") contradicts the shipped code, and the @onum-releases scope appears designed to resemble a legitimate vendor releases namespace.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Malicious packageFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @onum-releases/ixel (3 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @onum-releases/ixel across your stack and pipelines.
If you installed it — respond
Remove @onum-releases/ixel from your project and lockfile, then assume any secrets accessible to the build or runtime were exposed: rotate API keys, tokens, and credentials, and audit for unexpected outbound activity or persistence.
Did it already run?
If @onum-releases/ixel was ever installed, its post-install/runtime payload may have already executed. O3's L7 egress monitoring and runtime eBPF sensors detect the credential exfiltration or command-and-control callback after install and block the malicious outbound channel, so you catch and contain the actual compromise — not just the presence of the package.
How O3 protects you
O3 blocks @onum-releases/ixel before install through its supply-chain scanner, and if it has already run, detects and severs the exfiltration or C2 callback at runtime through L7 egress monitoring and eBPF.
Frequently asked questions
Campaign
References
Credits
- Amazon Inspector · finder
Detect & block this
O3 blocks @onum-releases/ixel-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the malicious outbound activity and severs the channel.