Shuyal Stealer is a sophisticated infostealer malware targeting 19 different browsers. It conducts deep system reconnaissance, collecting detailed hardware information and user data. The malware disables Windows Task Manager, ensures persistence through startup folder insertion, and exfiltrates stolen data via a Telegram bot. Shuyal's capabilities include credential harvesting from multiple browsers, clipboard capture, screenshot taking, and Discord token theft. It employs evasion techniques like self-deletion and uses PowerShell for data compression. The malware's wide-ranging browser targets and extensive data collection make it a significant threat to user privacy and system security.