During a September 2025 incident response investigation, Unit 42 discovered a rogue virtual machine (VM) which they believe with high confidence to be used by the cybercrime group Muddled Libra (aka Scattered Spider, UNC3944).
The contents of this rogue VM and activity from the attack provide valuable insight into the operational playbook of this threat actor. Muddled Libra created the VM after the group successfully gained unauthorized access to the target’s VMware vSphere environment.
Read more…
Source: Palo Alto Unit 42
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- Critical RCE Vulnerability Found in Cisco WebEx Extensions, Again — Patch Now!
July 17, 2017
A highly critical vulnerability has been discovered in the Cisco Systems’ WebEx browser extension for Chrome and Firefox, for the second time in this year, which could allow attackers to remotely execute malicious code on a victim’s computer. Cisco WebEx is a popular communication tool for online events, including meetings, webinars and video conferences that help ...
- NSA Advocates Data Sharing Framework
June 23, 2017
The economics of cybersecurity are skewed in favor of attackers, who invest once and can launch thousands of attacks with a piece of malware or exploit kit. That’s why Neal Ziring, technical director for the NSA’s Capabilities Directorate, wants to flip the financial equation on bad guys. “We need to conduct defenses in a way that ...

