The .zip format is utilized to bypass basic email filters that scan for raw .exe or .scr files.
Upon unzipping, the primary executable often masquerades as a legitimate document (e.g., Breathin_Fire_Invoice.pdf.exe ).
Unusual traffic to non-standard ports or known malicious IPs.
The payload typically modifies the Windows Registry ( HKCU\Software\Microsoft\Windows\CurrentVersion\Run ) to ensure it executes upon every system reboot.
All archives from external sources should be detonated in a virtualized environment before reaching production workstations.