gbhackers.com • 19h
Lazarus Group High-Velocity Ransomware Deployment via IIS Server Exploitation
This incident involves a high-velocity ransomware operation attributed to the Lazarus Group, characterized by a dwell time of less than 24 hours from initial breach to full-scale deployment. Attackers gained initial access by exploiting vulnerabilities or misconfigurations in an Internet Information Services (IIS) server, deploying webshells for persistence. Utilizing C2 frameworks such as Cobalt Strike and "Tollbooth" infrastructure, the actors executed rapid lateral movement to encrypt the internal network. The operation's speed indicates the use of automated playbooks, resulting in total operational downtime and potential data exfiltration within a single business day.