LWA-2026-10316 MAL-2026-13173 ↗ confirmed malware

dolyame-ui-pie@35.5.3

Malicious code in dolyame-ui-pie (npm)

T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1071.001 · Web ProtocolsT1102 · Web ServiceT1082 · System Information DiscoveryT1059 · Command and Scripting Interpreter

Analysis

On require, the package fingerprints the host platform/arch and downloads a second-stage binary over HTTPS from Cloudflare Workers endpoints (oob-worker[.]cf100-416[.]workers[.]dev, oob-worker[.]cf103-070[.]workers[.]dev, oob-worker[.]cf101-adf[.]workers[.]dev, oob-worker[.]cf99-9b3[.]workers[.]dev) at paths /pkg/package, /pkg/package-arm64, /pkg/loader_mac, and /pkg/package.exe. If HTTPS fails it falls back to a DNS-TXT channel that reassembles the payload from base64 chunks served under *.dl[.]wel1[.]ru (c[.]sdk[.]dl[.]wel1[.]ru, ext[.]dl[.]wel1[.]ru, pkg[.]dl[.]wel1[.]ru, net[.]dl[.]wel1[.]ru). The fetched binary is written to /var/tmp/.cache_<hex> (or dotnet_diag_<hex>.exe on Windows), made executable, and launched as a detached background process via /bin/sh -c '... &' or cmd.exe start /b. A large bundled lib/telemetry.js file is a decoy analytics-SDK disguise; DISABLE_TELEMETRY / ANALYTICS_OPT_OUT environment checks are evasion.

analyzed by
Leitwacht
first seen
Aug 5, 2026, 03:21 PM
analyzed
Aug 5, 2026, 03:34 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.