LWA-2026-10365 MAL-2026-13149 ↗ confirmed malware

dolyame-ui-constants@35.5.9

Malicious code in dolyame-ui-constants (npm)

T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1059 · Command and Scripting Interpreter

Analysis

dolyame-ui-constants@35.5.9 is a multi-stage remote-code-execution dropper disguised as a UI toolkit. On module load it downloads a platform-specific binary from Cloudflare Workers endpoints oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf102-baf[.]workers[.]dev, and oob-worker[.]cf103-070[.]workers[.]dev (paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, /pkg/package.exe), or falls back to retrieving the payload via chunked DNS TXT queries against sdk[.]dl[.]wel1[.]ru / ext[.]dl[.]wel1[.]ru / pkg[.]dl[.]wel1[.]ru / net[.]dl[.]wel1[.]ru. The downloaded binary is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe under %TEMP% on Windows), made executable, and launched as a detached background process (cmd.exe /c start /b on Windows, /bin/sh -c on Unix). The downloader only runs when the DISABLE_TELEMETRY / ANALYTICS_OPT_OUT / DO_NOT_TRACK environment variables are not set.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 02:06 PM
analyzed
Aug 5, 2026, 03:52 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.