# HollowFrame Loader Installs Matryoshka Backdoor in Law Firm Phishing Attack

A spear-phishing campaign targeted a law firm using the HollowFrame loader to deliver the Matryoshka backdoor. The attack likely aims to steal sensitive legal data, demonstrating the growing sophistication of modular malware.

**Importance:** 3/5

## Sources

### Security
- [The Hacker News](https://thehackernews.com/2026/07/hollowframe-loader-deploys-matryoshka.html) — Fri, 31 Jul 2026 22:09:31 +0530