Bitter APT Attacks China/Pakistan with WinRAR Zero-Day and New C# Backdoor via Office Macro Cyber Security Bitter APT Attacks China/Pakistan with WinRAR Zero-Day and New C# Backdoor via Office Macro Ddos October 22, 2025 Read More Read more about Bitter APT Attacks China/Pakistan with WinRAR Zero-Day and New C# Backdoor via Office Macro