A malspam campaign discovered in May 2026 exploits Google's DoubleClick infrastructure to deliver a sophisticated fileless .NET loader targeting German-speaking businesses. The loader runs entirely in memory, patches Windows' built-in telemetry (AMSI and ETW), and injects into legitimate Microsoft-signed processes to evade detection. This attack demonstrates how adversaries abuse trusted services to bypass security controls, highlighting the need for email authentication protocols, sandbox scanning, and behavioral analysis beyond traditional file-based detection.
Read the full article at Cyber Security News
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Ali NematiWritten by Ali
