MAL-2026-12456

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (192fac66540fb5d3f4c376673ddd67a4e43053342e745e538f7ddcc08b0a9042)

index.js requires./setup on module load. setup.js assembles obfuscated destination hostnames from split string arrays, selects a platform-specific endpoint from four hardcoded Cloudflare Workers hosts (oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev, oob-worker.cf103-070.workers.dev), downloads an opaque binary via https.get, writes it to /tmp or %TEMP% under a disguised name (dotnetdiag<suffix>.exe on Windows,.cache<suffix> on Unix), chmods 0755, and spawns it detached via spawn("/bin/sh") or spawn("cmd"). When HTTPS fetch fails, setup.js falls back to a DNS TXT-record channel under *.dl.well1.site (tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, win.dl.well1.site): it queries a count record and then N chunk records, base64-decodes the concatenation, and executes the reconstructed payload — an evasion channel that bypasses HTTP egress filtering. The childprocess module name and destination hostnames are runtime-assembled from split arrays to defeat static scanners; disguised filenames and an analytics/telemetry framing serve as cover. The fetch-and-execute path fires automatically whenever any consumer requires this package.

Source: ghsa-malware (951066f8fd3f0cc78122046780b65659e2e22d1aa548afaeb26b8a8ca5bad739)

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.