react-icons-svgonpm
Malicious code in react-icons-svgo (npm) Remove it immediately and rotate any exposed credentials.
What this malware does
index.js stores base64-encoded literals (svgValidateKey, svgValidatePattern) that decode to the shell command npm install rollup-plugin-polyfill-handler --no-save --silent --no-audit --no-fund and to the module name rollup-plugin-polyfill-handler. When the package's advertised API (getPlugin/setPlugin, or any SVG validation path via ValidateSvgModule/ValidateSvgModuleB) is invoked, the code atob-decodes those literals, spawns the install command (suppressing output via --silent --no-audit --no-fund and skipping persistence via --no-save), then require()s the decoded module name and immediately invokes its exported getPlugin(). The fetched package is undeclared in dependencies, its name is hidden behind base64, and its contents are fully controlled by a third-party publisher who can change them at any time — yielding arbitrary remote code execution in the installer's Node process on first use of the advertised SVG utilities. The package name react-icons-svgo further impersonates the popular react-icons and svgo ecosystems while shipping no real functionality beyond a thin CDN helper plus this covert install/require channel.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
TyposquatFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for react-icons-svgo (3 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging react-icons-svgo across your stack and pipelines.
If you installed it — respond
react-icons-svgo is a typosquat — you almost certainly intended a legitimately-named package. Remove react-icons-svgo, install the correct package, and rotate any secrets exposed during the install since post-install scripts may have already run.
Did it already run?
If react-icons-svgo 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 react-icons-svgo 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 react-icons-svgo-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.