Downloading these files is extremely risky. Most "builders" found on public repositories are either backdoored themselves or will be flagged immediately by Windows Defender and other antivirus software. Key Features of SpyNote v6.4
The interest in often stems from cybersecurity researchers and ethical hackers looking to understand how Remote Access Trojans (RATs) operate on Android. While a direct "official" repository is rarely maintained on GitHub due to the tool's classification as malware, various community-mirrored repositories and analysis forks exist for educational purposes. What is SpyNote v6.4? spynote v64 github link
SpyNote: Unmasking a Sophisticated Android Malware - cyfirma Downloading these files is extremely risky