TeleRAT is a Dubbed IRRAT Malware that steal information ranging from SMS and call history to file listings from infected Android devices. It works by making and after that populating the malicious files on the phones SD Card and sending them to the remote server. Once it launched into victims Android Phone, it creates two files in the apps internal directory containing a slew of information about the device including the System Bootloader version number, total and available Internal and External memory size, and a number of cores.”]
Source: https://gbhackers.com/telerat-malware-abused-telegram-bot-api/