@or-sdk/queue-manager@1.4.8
Malicious code in @or-sdk/queue-manager (npm)
T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1027 · Obfuscated Files or Information
Analysis
The package runs a preinstall hook (node setup.mjs) that downloads the Bun runtime from the official oven-sh 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 encoded string-array and decoder, hiding its behaviour from inspection. The package also depends on @or-sdk/base and @or-sdk/providers, which are known-malicious packages in the same namespace. Installing this package executes the obfuscated payload on the victim's machine.
- analyzed by
- Leitwacht
- first seen
- Aug 4, 2026, 11:57 AM
- analyzed
- Aug 4, 2026, 05:38 PM
- weekly installs
- 495
Related advisories
- @or-sdk/base@0.44.6
- @or-sdk/sdk-api@0.29.4
- @or-sdk/providers@0.3.8
- @or-sdk/library-categories@0.2.8
- @or-sdk/content-request@0.2.8
- @or-sdk/adapters@0.3.8
- @or-sdk/tables@0.28.7
- @or-sdk/store@2.1.7
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.