Infostealer malware is a type of malicious software designed to steal sensitive data from a victim’s device. It targets things like passwords, browser history, cookies, credit card details, saved files, and even clipboard content. Some infostealers also extract data from messaging apps, crypto wallets, and VPNs.
This malware is usually spread through phishing emails, malicious downloads, or bundled with fake software. Stolen data is often sold on the dark web or used in follow-up attacks like identity theft, financial fraud, or account takeovers.
Popular examples include RedLine, Raccoon, and Vidar—widely used in cybercrime for quick, scalable theft.