APT-C-53 Hits Ukraine: New Attack Exploits WinRAR Flaw for Persistence Cybercriminals APT-C-53 Hits Ukraine: New Attack Exploits WinRAR Flaw for Persistence ddos December 10, 2025 APT-C-53 has once again intensified its distribution of malicious attachments targeting organizations in Ukraine. The latest wave... Read More Read more about APT-C-53 Hits Ukraine: New Attack Exploits WinRAR Flaw for Persistence