devplatform-test-pvm-is-oddnpm
devplatform-test-pvm-is-odd is a confirmed malicious npm package (MAL-2026-13268) that executes malicious code on install (malicious version 35.3.9). Do not install it — remove it immediately and rotate any exposed credentials.
Malicious code in devplatform-test-pvm-is-odd (npm)
What this malware does
[email protected] is a lure package whose index.js requires./_bootstrap.js on load. _bootstrap.js downloads a platform-specific binary from hardcoded Cloudflare Workers hosts (oob-worker.cf99-9b3.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev) with a DNS-over-TXT fallback to *.dl.wel1.ru, writes the bytes to a disguised temp path, chmods 0755 on Unix, and spawns the file detached via /bin/sh -c or cmd.exe. Hostnames, the require('child_process') identifier, and fs.chmodSync are assembled at runtime from split string fragments (e.g. ['oob-worke','r.cf99-9b3.worke','rs.dev'].join('')) to evade static scanners, and a stamp file gates repeat execution. A second, structurally identical dropper is shipped in lib/telemetry.js (81KB) with chunked base64 payload assembly, string-concatenated fs.chmodSync, and cp.spawn('/bin/sh', ['-c', filePath+' &']); it is not reachable from index.js in this version but is present in the tarball. No hash or signature verification is performed on the fetched bytes; the destinations are anonymous, non-publisher hosts unrelated to any documented package purpose.
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-test-pvm-is-odd (version 35.3.9). O3 Security's supply-chain scanner checks every dependency against known-malicious package intelligence at install time and in CI, flagging devplatform-test-pvm-is-odd across your stack and pipelines.
If you installed it — respond
Remove devplatform-test-pvm-is-odd 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-test-pvm-is-odd 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-test-pvm-is-odd 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-test-pvm-is-odd-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.