MAL-2026-12287

Dashboard / Malicious Package / MAL-2026-12287

MAL-2026-12287

Summary: Malicious code in twork-data-services-aggregator-company-sme-main-timeline-loader-with-customers (npm)

Details: Source: amazon-inspector (401d167bfbb3ec350a033f908aef6678495563e92c6b090d0eaab85bd1c2b7ba) On require(), index.js loads _bridge.js which assembles obfuscated Cloudflare Workers hostnames from split string literals (oob-worker.cf100-416.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf99-9b3.workers.dev) and downloads a platform-specific opaque binary via https.get. If HTTPS fails, a DNS-TXT covert-channel fallback queries c.<domain> for a chunk count then <i>.<domain> TXT records under tin.dl.well1.site, tina.dl.well1.site, ldr.dl.well1.site, and win.dl.well1.site, base64-decoding the concatenated chunks. The bytes are written to a hidden path in /tmp or %TEMP%, chmodded 0755, and executed detached via spawn("/bin/sh", ["-c", fp+" &"]) or spawn("cmd",...). Cover strings such as "analytics_state" and "dotnet_diag" mask the behavior. The hosts are unrelated to any declared publisher, the fetched content is opaque and unverified, and execution fires automatically when any consumer imports the package. Source: ghsa-malware (29a15d879bf142dbee845996b4fa6a6a813683a3f4482f4539f03d95c7a39ec0) 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.

References: https://www.npmjs.com/package/twork-data-services-aggregator-company-sme-main-timeline-loader-with-customers/v/20.3.8, https://github.com/advisories/GHSA-cj3v-xccc-76vq