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高级持续性网攻威胁我国多行业 008

高级持续性网攻威胁我国多行业

Automated Penetration Testing with Fine-Grained Control through Deep Reinforcement Learning

环球时报

作者：马俊

在过去的2023年，全球面临来自网络空间的威胁变得更加严峻，其中组织性复杂、计划性高效和针对性明确的攻击活动更趋常态化，高级持续性威胁（apt）攻击成为网络空间社会影响最广、防御难度最高、关联地缘博弈最紧密的突出风险源，直... 详细信息

在过去的2023年，全球面临来自网络空间的威胁变得更加严峻，其中组织性复杂、计划性高效和针对性明确的攻击活动更趋常态化，高级持续性威胁（apt）攻击成为网络空间社会影响最广、防御难度最高、关联地缘博弈最紧密的突出风险源，直接影响到现实国家安全。360数字安全集团1月

关键词：网络攻击科研领域攻击手法网络安全事件高级持续性威胁 apt 渗透攻击漏洞利用攻击者持续性

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Journal of Communications and Information Networks 2023年第3期8卷 212-220页

作者： Xiaotong Guo Jing Ren Jiangong Zheng Jianxin Liao Chao Sun Hongxi Zhu Tongyu Song Sheng Wang Wei Wang University of Electronic Science and Technology of China Chengdu 611731China Peng Cheng Laboratory Shenzhen 518000China

Penetration testing(PT)is an active method of evaluating the security of a network by simulating various types of cyber attacks in order to identify and exploit vulnerabilities.Traditional PT involves a time-consuming and labor-intensive process that is prone to errors and cannot be easily formulated.Researchers have been investigating the potential of deep reinforcement learning(DRL)to develop automated PT(apt)tools.However,using DRL in apt is challenged by partial observability of the environment and the intractability problem of the huge action space.This paper introduces RLapt,a novel DRL approach that directly overcomes these challenges and enables intelligent automation of the PT process with precise control.The proposed method exhibits superior efficiency,stability,and scalability in finding the optimal attacking policy on the simulated experiment scenario.

关键词： apt cyber attack DRL

正式签约!新加坡亚太展将落地狮城纺织贸促会与新加坡旅游局签署aptEXPO 2024(新加坡亚太展)项目合作备忘录

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纺织服装周刊 2024年第22期 9-9页

作者：刘嘉不详

6月5日,中国国际贸易促进委员会纺织行业分会(纺织贸促会CCPIT TEX)与新加坡旅游局(STB)在深圳会展中心正式签署合作备忘录,双方就亚太纺织服装供应链博览会暨高峰论坛(aptEXPO 2024,简称“新加坡亚太展”)达成合作意向,新加坡旅游局将... 详细信息

6月5日,中国国际贸易促进委员会纺织行业分会(纺织贸促会CCPIT TEX)与新加坡旅游局(STB)在深圳会展中心正式签署合作备忘录,双方就亚太纺织服装供应链博览会暨高峰论坛(aptEXPO 2024,简称“新加坡亚太展”)达成合作意向,新加坡旅游局将为该项目落地狮城给予全方位支持。

关键词：深圳会展中心新加坡旅游局合作意向 EXPO 纺织行业 apt 纺织服装供应链高峰论坛

空天地一体化无线光通信网络关键技术及其发展趋势

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电子学报 2022年第1期50卷 1-17页

作者：赵雄文张钰秦鹏王晓晴耿绥燕宋俊元刘瑶李思峰华北电力大学新能源电力系统国家重点实验室北京102206 华北电力大学河北省电力物联网技术重点实验室河北保定071003

构建空天地一体化信息网络是第六代通信系统(the Sixth Generation,6G)的重要目标,无线光通信相较于射频(Radio Frequency,RF)通信技术具有容量大、速率高、抗干扰能力强等优势,已成为建立全球无缝覆盖空间网络的重要技术.本文综述了基... 详细信息

构建空天地一体化信息网络是第六代通信系统(the Sixth Generation,6G)的重要目标,无线光通信相较于射频(Radio Frequency,RF)通信技术具有容量大、速率高、抗干扰能力强等优势,已成为建立全球无缝覆盖空间网络的重要技术.本文综述了基于自由空间光通信(Free Space Optical Communication,FSOC)的空天地一体化网络国内外建设及相关标准化现状,相较于现有综述文献,涵盖了更多最新研究工作,并针对物理层和上层指出一体化FSOC网络设计需要关注的重要因素,对大气信道建模、“捕获、瞄准和跟踪”(Acquisition Pointing and Tracking,apt)、拓扑控制、路由、资源分配、可靠传输协议、微波协作传输几种重要通信技术进行总结和分析,并指出其未来发展趋势和面临的挑战.

关键词：空天地一体化自由空间光通信网络信道建模 apt 拓扑控制路由资源分配可靠传输协议微波协作传输

Precision time protocol attack strategies and their resistance to existing security extensions

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Cybersecurity 2021年第1期4卷 160-176页

作者： Waleed Alghamdi Michael Schukat School of Computer Science National University of Ireland Galway Ireland

The IEEE 1588 precision time protocol(PTP)is very important for many industrial sectors and applications that require time synchronization accuracy between computers down to microsecond and even nanosecond levels.Nevertheless,PTP and its underlying network infrastructure are vulnerable to cyber-attacks,which can stealthily reduce the time synchronization accuracy to unacceptable and even damage-causing levels for individual clocks or an entire network,leading to financial loss or even physical destruction.Existing security protocol extensions only partially address this problem.This paper provides a comprehensive analysis of strategies for advanced persistent threats to PTP infrastructure,possible attacker locations,and the impact on clock and network synchronization in the presence of security protocol extensions,infrastructure redundancy,and protocol redundancy.It distinguishes between attack strategies and attacker types as described in RFC7384,but further distinguishes between the spoofing and time source attack,the simple internal attack,and the advanced internal attack.Some experiments were conducted to demonstrate the impact of PTP attacks.Our analysis shows that a sophisticated attacker has a range of methodologies to compromise a PTP network.Moreover,all PTP infrastructure components can host an attacker,making the comprehensive protection of a PTP network against a malware infiltration,as for example exercised by Stuxnet,a very tedious task.

关键词： apt Cyber-attacks IEEE 1588 PTP Security Time synchronization protocols

Production of high purity apt from scheelite and complex tungsten raw material with high Mo content

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中国有色金属学会会刊：英文版 2004年第2期14卷 366-369页

作者：李洪桂 School of Metallurgical Science and Engineering

More than 73% of the tungsten resources in China are scheelite and 41% are high molybdenum content ores, and their dressing becomes increasingly difficult. Such situation calls for new and advanced processes that can treat complex ores and still attain high overall recovery of tungsten. The novel NaOH digestion process and selective precipitation process was developed. The former is universal for leaching tungsten from various tungsten materials, including scheelite concentrate and keeps most of the impurity elements P, As and Si in residue; while the latter is effective for removing impurities such as Mo and Sn. Combined with the traditional ion exchange process, the new process can be used to produce apt that confirms with the Chinese National Standard GB10116-88apt-0 with crystallization ratio of 95%. When treating high molybdenum scheelite concentrate from Shizhuyuan Deposit with WO3 content of 50%55%, recovery of the new process may reach up to about 95% which is grossly the same as that from the traditional way for treating standard wolframite concentrates.

关键词：钨冶金白钨矿 apt 钼纯度仲钨酸胺

Second phase effect on corrosion of nanostructured Mg-Zn-Ca dual-phase metallic glasses

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Journal of Magnesium and Alloys 2021年第5期9卷 1561-1570页

作者： Chang Liu Qing Wang Bin Han Junhua Luan Ji-Jung Kai Chain-Tsuan Liu Ge Wu Jian Lu Department of Mechanical Engineering City University of Hong KongHong KongChina Max-Planck-Institut für Eisenforschung Max-Planck-Straße 1Düsseldorf40237Germany Laboratory for Microstructures Institute of Materials ScienceShanghai UniversityShanghai 200072China Hong Kong Branch of National Precious Metals Material Engineering Research Centre Department of Material Science and EngineeringCity University of Hong KongHong KongChina Centre for Advanced Structural Materials City University of Hong Kong Shenzhen Research InstituteGreater Bay Joint DivisionShenyang National Laboratory for Materials ScienceShenzhen 518057China CityU-Shenzhen Futian Research Institute Shenzhen 518045China

Dual-phase metallic glasses(DP-MGs),a special member of the MGs family,often reveal unusual strength and ductility,yet,their corrosion behaviors are not understood.Here,we developed a nanostructured Mg_(57)Zn_(36)Ca_(7)(at.%)DP-MG and uncovered its corrosion mechanism in simulated body fluid(SBF)at the near-atomic scale utilizing transmission electron microscope(TEM)and atom probe tomography(apt).The 10-nm-wide Ca-rich amorphous phases allow oxygen propagation into the DP-MG,resulting in a micrometer thick hydroxides/oxides layer.This dense corrosion layer protects the DP-MG from further corrosion,enabling a corrosion rate that is 77%lower than that of Mg(99.99%purity).

关键词： Magnesium alloys Metallic glass Corrosion Sputtered films TEM apt

A Cyber Kill Chain Approach for Detecting Advanced Persistent Threats

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Computers, Materials & Continua 2021年第5期67卷 2497-2513页

作者： Yussuf Ahmed A.Taufiq Asyhari Md Arafatur Rahman School of Computing and Digital Technology Birmingham City UniversityBirminghamUK Faculty of Computing IBM CoEERASUniversity Malaysia PahangPahangMalaysia

The number of cybersecurity incidents is on the rise despite significant investment in security measures.The existing conventional security approaches have demonstrated limited success against some of the more complex cyber-attacks.This is primarily due to the sophistication of the attacks and the availability of powerful tools.Interconnected devices such as the Internet of Things(IoT)are also increasing attack exposures due to the increase in vulnerabilities.Over the last few years,we have seen a trend moving towards embracing edge technologies to harness the power of IoT devices and 5G networks.Edge technology brings processing power closer to the network and brings many advantages,including reduced latency,while it can also introduce vulnerabilities that could be exploited.Smart cities are also dependent on technologies where everything is interconnected.This interconnectivity makes them highly vulnerable to cyber-attacks,especially by the Advanced Persistent Threat(apt),as these vulnerabilities are amplified by the need to integrate new technologies with legacy systems.Cybercriminals behind apt attacks have recently been targeting the IoT ecosystems,prevalent in many of these cities.In this paper,we used a publicly available dataset on Advanced Persistent Threats(apt)and developed a data-driven approach for detecting apt stages using the Cyber Kill Chain.apts are highly sophisticated and targeted forms of attacks that can evade intrusion detection systems,resulting in one of the greatest current challenges facing security professionals.In this experiment,we used multiple machine learning classifiers,such as Naïve Bayes,Bayes Net,KNN,Random Forest and Support Vector Machine(SVM).We used Weka performance metrics to show the numeric results.The best performance result of 91.1%was obtained with the Naïve Bayes classifier.We hope our proposed solution will help security professionals to deal with apts in a timely and effective manner.

关键词： Advanced persistent threat apt Cyber Kill Chain data breach intrusion detection cyber-attack attack prediction data-driven security and machine learning

Interaction of apt with BSA or HSA

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Chinese Science Bulletin 2006年第18期51卷 2201-2207页

作者： CUI Fengling CUI Yanrui LUO Hongxia YAO Xiaojun FAN Jing LU Yan Henan Key Laboratory for Environmental Pollution Control School of Chemistry and Environmental Science Henan Normal University Xinxiang 453007 China Department of Chemistry Renmin University of China Beijing 100872 China Department of Chemistry Lanzhou University Lanzhou 730000 China

In this work, N-n-amyl-N’-(sodium p- aminobenzenesulfonate) thiourea (apt) containing saturated fatty hydrocarbon group was synthesized. Fluorescence quenching methods in combination with UV absorption spectra and molecule modeling method were used to study the interaction between apt and bovine serum albumin (BSA) or human se-rum albumin (HSA). The binding constants of apt with BSA or HSA were determined at different tem-peratures under the optimum conditions based on the fluorescence quenching results. The binding characteristics of apt and BSA or HSA were reported and the binding sites were obtained. The binding mode was suggested to be mainly hydrophobic interaction, which was consistent with molecular modeling study.

关键词： apt BSA 脂肪族烃牛血清蛋白 HSA 人血清白蛋白荧光光谱分子模型