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Ring 0级固件威胁：新型UEFI rootkit恶意软件BlackLotus曝光_我的网站
A | R. Madhavan has confirmed that his role in Dhurandhar 2, the sequel to Aditya Dhar's spy action thriller Dhurandhar, will be much larger. The first film, which was released last Friday, is already performing well at the box office. The movie stars Ranveer Singh, R. Madhavan, Akshaye Khanna, Arjun Rampal, Sara Arjun, and Sanjay Dutt, and is based on an Indian spy infiltrating terrorist network in Pakistan. The makers concluded the first film with an official announcement that Dhurandhar 2 is set for release on March 19, 2026. In an interview with Bollywood Hungama, R. Madhavan praised director Aditya Dhar and discussed what viewers can expect from his character, Ajay Sanyal, the Director of the Intelligence Bureau. He described the director as calm and composed, saying, “Aditya Dhar is a monk. Through all the chaos of making a film so dense and intense, he would sit there for the anxieties to settle down. What a fine human being! After working with Aditya in Dhurandhar, I want to work with him again and again.” He acknowledged that many fans wished for more screen time for him in the first part. Talking about this, he revealed that the second part will feature significantly more of Ajay Sanyal's experiences. Madhavan said, “My screen presence is limited in the first part. But in the second part, which will release in March, there is a lot of my character as he trains Ranveer’s character in skills of espionage warfare.” With this confirmation, the upcoming sequel is expected to delve into the mentor-trainee relationship between Ajay Sanyal and Jaskirat, played by Ranveer Singh. The first part provided only brief insights into Jaskirat's transformation into Hamza, which left audiences excited. Dhurandhar 2 is expected to further develop this narrative, highlighting the rigorous training and the progression of Ranveer's character under Madhavan's mentorship. Madhavan also talked about his eventful year, expressing how important 2025 has been for him. He said, “I started the year with Hisaab Barabar. I am ending the year with Dhurandhar, which is one of the most important films of my career. I’ve had the privilege of working with the best directors in the most creative and productive phase of their career: Mani Ratnam, Kamal Haasan, Rajkumar Hirani, Rakeysh Omprakash Mehra, Aanand L Rai and now Aditya Dhar. I couldn’t have asked for more.” Also Read: Dhurandhar Movie Review: Sprawling Spy Film Buoyed By Performances。 最近引发广泛讨论的“BlackLotus”，属于一款相当全能的固件级 rootkit 恶意软件。特点是能够躲过各种删除操作，以及绕过先进的 Windows 防护措施。此前这类高级攻击能力，仅被拥有深厚背景的机构所拥有，比如情报威胁组织。然而据报道，一款更新、更强大的 UEFT rootkit，正被人挂到暗网论坛上叫卖。“防护环”示意（图自：Wikipedia / Hertzsprung）卖家宣称 BlackLotus 是一款固件级 rootkit 恶意软件，能够绕过 Windows 防护措施、并在 x86 架构的最底层运行恶意代码。率先曝光此事的安全研究人员指出，单个 rootkit 的许可证费用高达 5000 美元，而后续代码重建则只需 200 美元。不过考虑到卖家罗列出来的功能，即使需要耗费重资，世界各地的网络犯罪分子和黑帽黑客也会趋之若鹜。Scott Scheferman 总结道：BlackLotus 采用了汇编与 C 语言编写，体量仅 80KB（约 81920 字节）。通过在内核级别（ring 0）提供‘代理防护’（agent protection），该 rootkit 能够在 UEFI 固件中长期驻留。此外 BlackLotus 具有反虚拟机、反调试和代码混淆功能，以阻碍研究人员对其展开分析尝试，且附带功能齐备的安装指南 / 常见问题解答。黑市叫卖帖与同类 rootkit 一样，BlackLotus 能够在 Windows 启动前的第一阶段被加载，因而能够绕过 Windows / x86 平台上的诸多安全防护措施。除了无视 Secure Boot、UAC、BitLocker、HVCI 和 Windows Defender，该恶意软件还提供了加载未签名驱动程序的能力。其它高级功能包括功能齐备的文件传输模式、以及易攻破的签名引导加载程序 —— 除非影响当今仍在使用的数百个引导加载程序，否则很难将它斩草除根。Scott Scheferman 还强调了 BlackLotus 可能对基于固件的现代安全防护机制构成威胁。而且新 UEFI rootkit 在易用性、扩展性、可访问性、持久性、规避和破坏潜力方面，都实现了相当大的跨越。
B | 此前人们一度认为这类威胁相当罕见，但过去几天不断被打脸的攻击报告，已经指向了截然不同的未来趋势。最后，安全社区将对 BlackLotus 恶意软件的实际样本展开更加细致、深入的分析，以确定传闻的真实性、还是说它只是某人精心编造的一个骗局。
C |
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Published on:09:29:09