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A malicious entity named AlphaGhoul has introduced a tool called NtKiller, designed to disable antivirus software and endpoint detection systems, posing a threat to organizations using traditional security measures. NtKiller was advertised on an underground forum, claiming to allow attackers to operate undetected while executing malware. It reportedly circumvents security programs like Microsoft Defender, ESET, Kaspersky, Bitdefender, and Trend Micro, and can bypass enterprise-grade Endpoint Detection and Response solutions in aggressive modes. Analysts from KrakenLabs noted that NtKiller uses early-boot persistence mechanisms to evade detection and operates on a modular pricing structure, with core functionality available for [openai_gpt model="gpt-4o-mini" prompt="Summarize the content and extract only the fact described in the text bellow. The summary shall NOT include a title, introduction and conclusion. Text: A malicious entity known as AlphaGhoul has recently surfaced within the cybercriminal underworld, promoting a tool dubbed NtKiller. This tool is engineered to discreetly disable antivirus software and endpoint detection systems, posing a new threat to organizations that rely on traditional security measures. NtKiller was unveiled on an underground forum frequented by individuals seeking to buy and sell hacking services. The advertisement claims that this tool enables attackers to operate undetected while executing their malware on compromised machines. The introduction of NtKiller signifies a formidable challenge for businesses that depend on established security solutions. According to the threat actor, the tool is capable of circumventing several widely-used security programs, including Microsoft Defender, ESET, Kaspersky, Bitdefender, and Trend Micro. Alarmingly, it is also said to bypass enterprise-grade Endpoint Detection and Response (EDR) solutions when utilized in aggressive modes. Analysts from KrakenLabs have observed that NtKiller employs early-boot persistence mechanisms, allowing it to remain concealed and evade detection by security teams once activated. This stealthy approach complicates efforts to identify and eliminate the malware. Further investigation by KrakenLabs revealed that NtKiller operates on a modular pricing structure. The core functionality is available for 0, with additional features such as rootkit capability and User Account Control (UAC) bypass each priced at an extra 0. This pricing model indicates that the tool has been meticulously crafted for commercial distribution within the cybercriminal ecosystem. Beyond merely terminating processes, NtKiller is purported to support advanced evasion techniques, including HVCI disabling, VBS manipulation, and memory integrity circumvention. Technical capabilities The technical features attributed to NtKiller render it particularly perilous in the hands of adept attackers. The tool's early-boot persistence mechanism allows it to embed itself during system startup, prior to the activation of many security monitoring systems. This timing advantage facilitates the execution of malicious payloads in an environment where detection capabilities are significantly diminished. Moreover, the anti-debugging and anti-analysis protections embedded within NtKiller hinder researchers and automated tools from scrutinizing the malware's behavior, resulting in a substantial knowledge gap regarding its true capabilities versus its promotional claims. Another critical feature is the silent UAC bypass option, which enables malware to acquire elevated system privileges without triggering standard Windows prompts that could alert users to suspicious activities. When combined with rootkit functionality, this allows attackers to maintain persistent access to compromised systems while remaining undetected by conventional security measures. It is essential to highlight that these capabilities have yet to be independently verified by third-party researchers, leaving the actual effectiveness of NtKiller uncertain. Organizations are urged to remain vigilant and ensure their security tools incorporate behavioral detection mechanisms that extend beyond signature-based identification to effectively combat such emerging threats. Follow us on Google News, LinkedIn, and X to Get More Instant Updates, Set CSN as a Preferred Source in Google." max_tokens="3500" temperature="0.3" top_p="1.0" best_of="1" presence_penalty="0.1" frequency_penalty="frequency_penalty"] and additional features priced at 0 each. The tool supports advanced evasion techniques, including HVCI disabling, VBS manipulation, and memory integrity circumvention. Its silent User Account Control bypass option allows malware to gain elevated privileges without alerting users. The effectiveness of NtKiller's capabilities has not been independently verified, prompting organizations to enhance their security measures beyond signature-based detection.