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Katz Stealer is a sophisticated credential-stealing malware-as-a-service that targets multiple browsers, cryptocurrency wallets, and communication platforms. It employs advanced evasion techniques like geofencing, VM detection, and process hollowing. The infection chain involves obfuscated JavaScript, PowerShell scripts, and .NET payloads. Key features include browser credential theft, crypto wallet exfiltration, and Discord process hijacking. The malware also gathers system information, captures screenshots, and monitors clipboards. Detection opportunities include network traffic analysis, file system monitoring, and process behavior analysis. The analysis provides YARA and Sigma rules for detection, along with a comprehensive list of IOCs.

Katz Stealer is a sophisticated malware-as-a-service designed primarily for credential theft across multiple platforms. It targets web browsers, cryptocurrency wallets, and communication applications such as Discord. The malware employs advanced evasion techniques including geofencing to avoid infecting systems in certain regions, virtual machine detection to evade sandbox analysis, and process hollowing to inject malicious code into legitimate processes, thereby obscuring its presence. The infection chain is complex, involving obfuscated JavaScript to initiate the attack, PowerShell scripts for execution and persistence, and .NET payloads for the core malicious functionality. Katz Stealer's capabilities include stealing saved browser credentials, exfiltrating cryptocurrency wallet data, hijacking Discord processes to potentially manipulate or spy on communications, gathering detailed system information, capturing screenshots for reconnaissance, and monitoring clipboard data which often contains sensitive information such as copied passwords or wallet addresses. Detection opportunities exist through network traffic analysis to identify unusual outbound connections, file system monitoring to detect suspicious script or payload files, and behavioral analysis of processes to spot anomalies like process hollowing. The threat intelligence includes YARA and Sigma detection rules and a comprehensive list of indicators of compromise (IOCs) to aid defenders in identifying infections.

Detailed information about Katz Stealer Threat Analysis. Get real-time updates, technical details, and mitigation strategies.

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Threats Tagged 'browser-targeting'

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