LWA-2026-10058 MAL-2026-11714 ↗ confirmed malware

@or-sdk/notifications@1.7.7

Malicious code in @or-sdk/notifications (npm)

T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1027 · Obfuscated Files or Information

Analysis

The package runs a preinstall hook (setup.mjs) that downloads the Bun runtime and uses it to execute a bundled 727KB obfuscated script (math_init.js). The script is obfuscated with a large encoded string array and a custom decoder, and contains eval, Function-constructor, and child_process calls. Installing the package triggers remote runtime download and execution of this obfuscated payload at install time.

analyzed by
Leitwacht
first seen
Aug 4, 2026, 11:57 AM
analyzed
Aug 4, 2026, 05:39 PM
weekly installs
625

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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.