devplatform-spa-plugin-i18nextnpm
devplatform-spa-plugin-i18next is a confirmed malicious npm package (MAL-2026-12768) that executes malicious code on install (malicious version 35.2.1). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in devplatform-spa-plugin-i18next (npm)
What this malware does
index.js unconditionally requires./loader on load. loader.js reassembles Cloudflare workers.dev hostnames (oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf100-416.workers.dev) from split-string arrays, with a DNS-TXT covert-channel fallback to sdk.dl.wel1.ru / ext.dl.wel1.ru / pkg.dl.wel1.ru / net.dl.wel1.ru (chunk-count from c.<domain>, base64 chunks from numbered subdomains). It fetches a platform-specific native binary, writes it to /var/tmp or %TEMP% under cover names such as dotnet_diag<hex>.exe or.cache<hex>, chmods 0755, and spawns it detached via /bin/sh -c '<file> &' or cmd /c start. A second module lib/telemetry.js (~81KB, disguised as an analytics SDK) duplicates the same fetch+chmod+spawn primitives using string-concatenated identifiers (require("child_"+"process"), fs["chmod"+"Sync"]) as a redundant stage. The i18next plugin name and analytics_state marker do not correspond to any translation functionality shipped in the tarball.
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 devplatform-spa-plugin-i18next (version 35.2.1). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging devplatform-spa-plugin-i18next across your stack and pipelines.
If you installed it — respond
Remove devplatform-spa-plugin-i18next 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 devplatform-spa-plugin-i18next 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 devplatform-spa-plugin-i18next 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 devplatform-spa-plugin-i18next-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.