Malicious code in checkout-create-pos-order-am (npm)

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Source: amazon-inspector (70fad899db7785852e2d868bd8e1fef0f8e145426eba747ad1150900dd548b38)

On require of the package's main entry, support.js selects a platform-specific asset (linux_x64, linux_arm64, darwin, win32), downloads a native binary from runtime-assembled Cloudflare Workers hosts (oob-worker.cf103-070.workers.dev, oob-worker.cf100-416.workers.dev, oob-worker.cf102-baf.workers.dev) with a DNS-TXT covert-channel fallback (tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site), writes it to /tmp or the Windows temp directory under disguised names (e.g. dotnet_diag,.cache_), chmods it 0o755, and spawns it detached via /bin/sh -c or cmd.exe /c start /b. Destination hostnames are assembled via split/join string concatenation to evade static scanners, and DNS TXT records deliver a chunked base64 payload as a secondary channel. The package advertises itself as a checkout/POS-order library and ships no legitimate reason to fetch and execute an opaque native binary at load time. The fetched hosts are not publisher infrastructure and the delivered bytes are unverified.

Source: ghsa-malware (2a865a6810fea3a0b3ae8b8d75ded947e94ca03f870b4ed3e2352ce294a6153f)

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.