CyberEye is a modular, .NET-based Remote Access Trojan that utilizes Telegram for Command and Control, eliminating the need for attackers to maintain their own infrastructure. It offers a wide array of surveillance and data theft capabilities, including keylogging, file grabbing, and clipboard hijacking. The malware employs advanced defense evasion techniques, disabling Windows Defender through PowerShell and registry manipulations. Its modules harvest browser credentials, Wi-Fi passwords, gaming profiles, and session data from various applications. The builder framework allows adversaries to customize payloads, making it accessible to less technically skilled threat actors. CyberEye's persistence mechanisms, anti-analysis features, and use of public messaging platforms for C2 make it a significant threat to both consumers and enterprises.