LWA-2026-13305 confirmed malware

@drone-js-ext/core@1.0.0

Malicious code in @drone-js-ext/core (npm)

T1195.002 · Compromise Software Supply ChainT1059.007 · JavaScriptT1082 · System Information DiscoveryT1071.001 · Web ProtocolsT1041 · Exfiltration Over C2 Channel

Analysis

@drone-js-ext/core@1.0.0 is a dependency-confusion shim that beacons to a hardcoded IP address on install and on import. Its package.json postinstall hook runs `node beacon.cjs`, and index.js calls the same beacon's fire() when the module is required, so any build that imports the name also triggers it. The beacon sends an HTTP POST to hxxp://185[.]158[.]107[.]175:8787/_ah/dc with an x-beacon-package header; the JSON body carries the package name, the machine hostname, the install directory (__dirname), the current working directory and the npm/node user agent. index.js exports a no-op Proxy so that importing the package does not throw and the install/build completes while the callback is still made. The package ships no repository and its description is "Compatibility shim."

analyzed by
Leitwacht
first seen
Oct 25, 2026, 10:50 PM
analyzed
Oct 25, 2026, 10:50 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.