Agent Tesla Malware Analysis: How This .NET RAT Steals Your Data

Key Takeaways

• Agent Tesla is a .NET-based Remote Access Trojan sold as Malware-as-a-Service on dark web forums since 2014, targeting Windows endpoints to steal credentials, browser data, and communications.
• The malware steals saved passwords and cookies from dozens of browsers, email clients, FTP tools, and VPN configurations.
• Agent Tesla uses the SetWindowsHookEx API to log keystrokes globally, and it also captures screenshots.
• The malware maintains persistence by dropping a copy into the Startup folder and writing to the Run registry key and Winlogon Shell value.
• Agent Tesla exfiltrates stolen data through SMTP, FTP, or HTTP, routed through a downloaded Tor browser for anonymization.
• Picus Security Validation Platform simulates Agent Tesla campaigns, including droppers, loaders, keyloggers, and infostealers, to test your security controls against real attack behavior.

Agent Tesla operates as a Remote Access Trojan written in .NET. Threat actors deploy this malware to steal sensitive data from compromised Windows endpoints. Since 2014, cybercriminals have offered this tool as Malware-as-a-Service on dark web forums. The malware targets individual users and organizations worldwide, with primary targets concentrated in the United States, China, and Germany, as well as the global education sector. The primary objective involves exfiltrating credentials, browser histories, and communication records.

Article Link: Agent Tesla Malware Analysis: How This .NET RAT Steals Your Data

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