@wololasod/tiny-idnpm
@wololasod/tiny-id is a confirmed malicious npm package (MAL-2026-12331) that runs destructive / sabotage code (malicious versions 0.1.0, 0.1.1, 0.1.3). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in @wololasod/tiny-id (npm)
What this malware does
The package advertises itself as a tiny ID generator but its main entry dist/index.cjs contains an obfuscator.io + RC4 string-array VM that, on require/import, resolves a platform-specific configuration (win32/linux), downloads a remote executable over https to a temp/APPDATA path, and executes it via child_process.spawn (VBS launcher on Windows, direct spawn on Linux), then deletes the staged file. Staging filename observed: 'nupkg_system.diagnostics.performancecounter.8.0.0.py'. The loader additionally re-launches itself via spawn(process.execPath, [__filename], {detached:true, stdio:'ignore', windowsHide:true, env:{...process.env, RUN_PAYLOAD:...}}) and unrefs the child, producing a hidden, detached process that survives the parent. The loader includes obfuscator.io anti-analysis features: RC4-decoded string array, hex-named identifiers, eval.toString()/Function.prototype.bind.toString() '[native code]' integrity checks, and a djb2 caller-hash gate ('_$h!== 0x74F28336') that crashes if the code is reformatted. The same obfuscated dropper is also shipped in dist/index.d.ts, which is declared as the TypeScript types entry — a.d.ts file should contain pure type declarations, not executable code. None of this behavior relates to ID generation.
Malicious versions
Indicators of compromise (SHA-256)
Detection & response playbook
Destructive / sabotageFind it
Scan your lockfiles (package-lock.json, pnpm-lock.yaml, yarn.lock, requirements.txt, poetry.lock, etc.) and build artifacts for @wololasod/tiny-id (3 malicious versions). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging @wololasod/tiny-id across your stack and pipelines.
If you installed it — respond
@wololasod/tiny-id carries a destructive/sabotage payload. Remove it immediately, restore any affected data from clean backups, and verify integrity of build outputs that may have been tampered with.
Did it already run?
If @wololasod/tiny-id 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 @wololasod/tiny-id 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 @wololasod/tiny-id-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.