@or-sdk/flow-templates@2.1.7
Malicious code in @or-sdk/flow-templates (npm)
T1059.007 · JavaScriptT1105 · Ingress Tool TransferT1027 · Obfuscated Files or Information
Analysis
The package's preinstall hook (node setup.mjs) downloads the Bun runtime (bun-v1.3.13) from github[.]com/oven-sh/bun/releases and uses it to execute a bundled 727KB obfuscated JavaScript payload (math_init.js) at install time. The payload is obfuscated with a large encoded string array and a custom decoder, and makes use of eval, Function, and child_process. The package also depends on the known-malicious packages @or-sdk/base and @or-sdk/data-hub-svc. Installing this package executes the obfuscated payload on the installer's machine.
- analyzed by
- Leitwacht
- first seen
- Aug 4, 2026, 11:59 AM
- analyzed
- Aug 4, 2026, 03:56 PM
Related advisories
- @or-sdk/base@0.44.6
- @or-sdk/sdk-api@0.29.4
- @or-sdk/providers@0.3.8
- @or-sdk/idw-skill@1.4.3
- @or-sdk/api-tokens@1.4.4
- @or-sdk/views@3.1.7
- @or-sdk/tickets@1.9.7
- @or-sdk/mcp-tools@0.5.4
Independently detected by the Leitwacht supply-chain probe. IOCs are defanged. Published CC0. Think this is a mistake? See the dispute policy.