: 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.
: A simple list of Bitcoin addresses used for checking balances or "hunting" for old funds. btc.txt
: Older Bitcoin wallet applications or manual backups often save private keys, seed phrases, or transaction summaries in a plain text file named btc.txt or wallet.txt . Malware/Ransomware : : Some ransomware families (like the specifically named