: Some ransomware families (like the specifically named "BTC ransomware") place a file named BTC_DECRYPT_FILES.txt on the desktop with instructions for the victim.
: In tools like C-Sharp-Mnemonic or Tkinter-Power , btc.txt is often used as a database or input file containing a list of target Bitcoin addresses or public keys. btc.txt
: "Bitcoin stealer" viruses monitor your clipboard and may use local text files to store stolen addresses or configuration data. File Structure Examples : Some ransomware families (like the specifically named