Suspicious_IoT_Firmware

I was contacted by someone on an underground forum who offered me what they described as an exclusive IoT firmware build. They insisted it was authentic and even gave it away at no cost. After attempting to install it on a device, it either fails to function properly or behaves as if it was deliberately sabotaged. This makes me suspect the firmware may have been altered on purpose, and there could be something concealed within it beyond its stated functionality.