LWA-2026-10035 MAL-2026-11688 ↗ confirmed malware

@or-sdk/deployments@2.1.7

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

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

Analysis

The package's preinstall hook (setup.mjs) downloads the Bun JavaScript runtime from a GitHub release and uses it to execute a bundled 727KB obfuscated script (math_init.js) at install time. The script is obfuscated with a custom decoder over a large encoded string array, hiding its behaviour from inspection. The package also depends on other packages in the same namespace that are known-malicious. Installing this package runs the obfuscated payload automatically during npm install.

analyzed by
Leitwacht
first seen
Aug 4, 2026, 11:59 AM
analyzed
Aug 4, 2026, 04:05 PM
weekly installs
63

Related advisories

browse all confirmed advisories →

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