A banking trojan is malware built to steal financial information such as online banking credentials, card data, payment details, or authenticated session tokens. Unlike generic malware, it is designed to target banking workflows and monetize access to accounts, transfers, or fraud-enabled logins.
Banking trojans matter because they can quietly intercept what a user types, modify web pages, capture one-time codes, or steal browser cookies and session data. In real attacks, they are often delivered through phishing links, malicious attachments, trojanized installers, or fake software updates. Once active, they may hide in the browser, watch for banking sites, and send stolen data to attacker-controlled servers. Defenders look for unusual logins, suspicious browser activity, tampered installers, and account behavior that does not match the user. Strong endpoint protection, signed-software verification, multi-factor authentication, and session monitoring all help reduce the damage.