A LinkedIn Job Offer Tried to Install Malware on My Machine

2026-01-26 Code Crank

https://codecrank.ai/blog/linkedin-malware-warning/

Thumbnail for A LinkedIn Job Offer Tried to Install Malware on My Machine

A freelance code-review lure on LinkedIn led to a trojanized GitLab real-estate application that hid malware inside an otherwise functional React, Express, MongoDB, and SendGrid project. The infection chain abused npm lifecycle behavior by making `postinstall` run the app, which loaded an obfuscated IIFE in `server/controllers/userController.js`, decoded Base64 configuration, fetched a payload from jsonkeeper.com, and executed it with `Function.constructor`. The payload was designed for socket.io command-and-control at `144.172.108.57:4891`, file discovery and upload to `144.172.108.57:4896`, clipboard monitoring, and persistence through a `.npm` PID file. The case matters because it shows how credible recruiting personas and legitimate-looking repositories can be used to compromise developers before any contract or interview is completed.

Indicators of Compromise

Type Value First Seen Last Seen
DOMAIN calendly.com 2024-10-29 2026-03-02
HASH 098f6bcd4621d373cade4e832627b4f6 2026-01-26 2026-01-26
EMAIL [email protected] 2026-01-26 2026-01-26
URL https://jsonkeeper.com/b/ARL7M 2026-01-26 2026-01-26
URL https://calendly.com/jack-murra… 2026-01-26 2026-01-26
IPv4 57.108.172.144 2026-01-26 2026-01-26
IPv4 144.172.108.57 2026-01-26 2026-01-26

Related Reports

« Back