@finaxis/common-jsnpm
@finaxis/common-js is a confirmed malicious npm package (MAL-2026-14064) that hijacks the host to mine cryptocurrency (malicious version 0.3.4). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in @finaxis/common-js (npm)
What this malware does
Package is published with a README copied from lodash v4.18.1 and keywords ['lodash','lodash-js'], but the sole shipped module dist/common-js.js is a heavily obfuscated bundle (javascript-obfuscator with string-array rotation and hex-named identifiers, produced by the package's own scripts.obfuscate build step) implementing a Xelis (XEL) proof-of-work miner. The bundle contains a stratum protocol client (stratum:// URLs, mining.ping, mining.set_extranonce, mining.hashrate), a Web Worker mining loop (mineBatch, HASH_BATCH), and an embedded ~46KB base64 WASM payload exporting wasm_xelis_hash_v3 and wasm_mine_batch. Nothing in the shipped code implements a lodash-compatible utility API. Consumers that install this thinking they are getting lodash instead load a covert cryptominer that consumes the host's CPU/GPU on behalf of the attacker's Xelis mining pool.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
CryptominerFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @finaxis/common-js (version 0.3.4). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @finaxis/common-js across your stack and pipelines.
If you installed it — respond
@finaxis/common-js hijacks resources to mine cryptocurrency. Remove it, check for abnormal CPU/GPU and cloud-cost spikes, and rotate any credentials exposed to the compromised process.
Did it already run?
If @finaxis/common-js 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 @finaxis/common-js 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 @finaxis/common-js-class packages before install and in CI — and if it already ran, its runtime egress monitoring catches the mining traffic and severs the channel.