BTC Stealer is a highly specialized and increasingly sophisticated type of malicious software (malware) specifically engineered to target and steal Bitcoin (BTC) and other cryptocurrencies from a wide range of digital assets, including personal wallets, online exchanges, and cryptocurrency payment systems. As the popularity and adoption of cryptocurrencies have surged globally, so too has the incentive for cybercriminals to develop more advanced and evasive BTC Stealers that can bypass traditional security defenses and extract valuable digital currencies with minimal risk of detection. By 2025, these malware variants will have evolved significantly, incorporating cutting-edge evasion techniques such as polymorphic code, encrypted communications, sandbox avoidance, and stealthy rootkit-level persistence to remain undetected on compromised devices for extended periods.