tailwindcss-hide-scrollbarnpm
tailwindcss-hide-scrollbar is a confirmed malicious npm package (MAL-2026-13424) that typosquats a legitimate package to trick installs (malicious versions 0.0.1, 1.0.0, 2.5.3…). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in tailwindcss-hide-scrollbar (npm)
What this malware does
dist/index.js exports a small tailwind scrollbar-hide plugin followed by a trailing eval(atob('<~32KB obfuscator.io payload>')) that executes on every require()/import of the package. The decoded payload pulls in http, https, zlib and child_process.spawn (with require('child_proc'+'ess') split-string obfuscation and an obfuscator.io string-array dispatcher) and contains hardcoded Ethereum JSON-RPC method names (eth_getBlockByNumber, eth_blockNumber), etherscan-style transaction listing paths (?module=account&action=...&startblock=0&endblock=99999999), a process.env.ETH_RPC_URL read, and hardcoded RPC/explorer hosts under drpc.org, publicnode.com, blockscout.com and blast-api.io. A CSS utility plugin has no legitimate need for network I/O, spawned child processes, or dynamic evaluation of an obfuscated blob. The package name inverts the word order of the established tailwind-scrollbar-hide plugin, consistent with a typosquat carrier for the loader.
Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.
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 tailwindcss-hide-scrollbar (4 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging tailwindcss-hide-scrollbar across your stack and pipelines.
If you installed it — respond
tailwindcss-hide-scrollbar is a typosquat — you almost certainly intended a legitimately-named package. Remove tailwindcss-hide-scrollbar, 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 tailwindcss-hide-scrollbar 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 tailwindcss-hide-scrollbar 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 tailwindcss-hide-scrollbar-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.