test-agency-assignment-02npm
test-agency-assignment-02 is a confirmed malicious npm package (MAL-2026-17297) that executes malicious code on install (malicious version 1.0.5). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in test-agency-assignment-02 (npm)
What this malware does
The tarball contains only package.json and 4444.vbs; the declared main entry (index.js) is absent. package.json defines a postinstall script wscript.exe 4444.vbs, so on npm install on Windows the VBScript executes automatically. 4444.vbs is heavily obfuscated (colon-delimited XOR-encoded CreateObject strings, embedded AES S-box and ChaCha20-IETF routines, and 600+ base64 fragments reconstructed at runtime) and presents cover strings identifying itself as Device Telemetry Aggregator / Verdant Signals Corp.. It reconstructs an encrypted payload, writes it to %TEMP% as a pf*.dat file, and invokes powershell.exe to perform process hollowing of the decoded loader. The package ships no library code — its only reachable behavior is the install-time dropper.
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 test-agency-assignment-02 (version 1.0.5). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging test-agency-assignment-02 across your stack and pipelines.
If you installed it — respond
Remove test-agency-assignment-02 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 test-agency-assignment-02 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 test-agency-assignment-02 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 test-agency-assignment-02-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.