@or-sdk/bots@1.7.3
Malicious code in @or-sdk/bots (npm)
T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1027 · Obfuscated Files or InformationT1195.002 · Compromise Software Supply Chain
Analysis
The package's preinstall hook (setup.mjs) downloads the Bun runtime from github[.]com/oven-sh/bun and uses it to execute a bundled 727KB heavily-obfuscated script (math_init.js) at install time. The script uses a custom string-array decoder and contains eval/Function-constructor and child_process calls, so its behaviour is hidden behind obfuscation. The package also depends on @or-sdk/base, @or-sdk/data-hub-svc, and @or-sdk/tags, which are part of a known-malicious dependency chain. Installing this package executes the obfuscated payload automatically.
- analyzed by
- Leitwacht
- first seen
- Aug 4, 2026, 11:59 AM
- analyzed
- Aug 4, 2026, 05:23 PM
- weekly installs
- 228
Related advisories
- @or-sdk/base@0.44.6
- @or-sdk/sdk-api@0.29.4
- @or-sdk/providers@0.3.8
- @or-sdk/card-templates@2.2.7
- @or-sdk/keys@1.2.8
- @or-sdk/graph@1.10.7
- @or-sdk/apps@1.2.8
- @or-sdk/cards@1.2.7
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.