Incident Response Checklist 🚨 Immediate Actions (0-24 hours) Alert all relevant teams of the high-severity incident Identify and isolate systems running vulnerable WinRAR versions Block known malicious IPs and domains associated with Bitter APT Update antivirus and endpoint detection signatures 🔄 Recovery Actions Patch all systems with the latest WinRAR updates Restore compromised systems from clean backups Conduct a thorough vulnerability assessment across the network Reinforce security monitoring on critical systems