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Mallory
Malware

NtKiller

NtKiller is a malware/tool advertised on underground cybercriminal forums by the threat actor AlphaGhoul. It is promoted as a stealthy utility for silently terminating antivirus and endpoint detection and response products in order to help attackers evade detection while running malware on compromised systems. According to the provided reporting, NtKiller claims compatibility against major security products including Microsoft Defender, ESET, Kaspersky, Bitdefender, and Trend Micro, and is also advertised as capable of bypassing enterprise-grade EDR solutions in aggressive modes. Reported capabilities include early-boot persistence, anti-debugging and anti-analysis protections, HVCI disabling, VBS manipulation, memory integrity circumvention, and a silent UAC bypass feature for privilege escalation. A rootkit capability is offered as an add-on. The tool is described as being sold commercially within the cybercriminal ecosystem with modular pricing, including $500 for core functionality and additional charges for rootkit and UAC bypass features. KrakenLabs analysts reportedly examined the tool, but its real-world effectiveness has not been independently verified. The content does not provide specific infection vectors, victim sectors, platforms beyond infected computers/endpoint environments, or concrete indicators of compromise.

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