Horabot Campaign Exploits AutoIt To Deploy Banking Trojan

Kaspersky's MDR team identified and analyzed a persistent Horabot campaign a few months ago, which uses fake CAPTCHA lures to execute chained HTA/VBScript loaders and server-side polymorphism. The operation deploys AutoIt components that decrypt an in-memory Delphi banking Trojan (Casbaneiro/Zusy) and exfiltrates host data to exposed C2 infrastructure, with over 5,384 victims logged since May 2025, mainly in Mexico (≈93%).
Scoring Rationale
Strong actionable telemetry and official MDR validation drive a high score, limited by moderate novelty over prior Horabot research.
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