LWA-2026-10179 MAL-2026-12723 ↗ confirmed malware

devplatform-nx-gle@35.5.3

Malicious code in devplatform-nx-gle (npm)

T1059 · Command and Scripting InterpreterT1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1071 · Application Layer ProtocolT1567 · Exfiltration Over Web ServiceT1082 · System Information Discovery

Analysis

On require, the package executes a bundled dropper (_bridge.js) that downloads a second-stage binary over HTTPS from Cloudflare Workers endpoints (oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf100-416[.]workers[.]dev, path /pkg/package or platform variants /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe). If the HTTP download fails it falls back to a DNS-TXT exfiltration channel under c[.]sdk[.]dl[.]wel1[.]ru (and platform variants ext[.]dl[.]wel1[.]ru, pkg[.]dl[.]wel1[.]ru, net[.]dl[.]wel1[.]ru), reading a TXT-record count then base64 chunks from numbered TXT records. The downloaded payload is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe in the temp dir on Windows), made executable, and launched as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c "&" on Unix). A timestamp cache file throttles re-execution. The package performs no legitimate function beyond fetching and executing this remote payload.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 01:34 PM
analyzed
Aug 5, 2026, 01:58 PM

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Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.