Name: Baojun Liu

Title: Tenure-track Associate Professor; PhD Supervisor

Email: lbj@tsinghua.edu.cn

Homepage: https://liubaojun.org

Doctor of Engineering, Tsinghua University, China, 2015.09–2020.10

Senior Visiting Scholar, University of California, Berkeley, USA, 2018.01–2019.01

Bachelor of Engineering, Xidian University, China, 2011.09–2015.07

2025.07–present: Tenure-track Associate Professor, Institute for Network Sciences and Cyberspace, Tsinghua University

2024.08–present: Jointly Appointed Technical Expert, Zhongguancun Laboratory

2022.12–2025.06: Assistant Professor, Institute for Network Sciences and Cyberspace, Tsinghua University

2020.11–2022.11: Postdoctoral Researcher, Institute for Network Sciences and Cyberspace, Tsinghua University

Deputy Director of the Office, CCF Technical Committee on Network and System Security

Member of an ICANN advisory committee on root server systems[C1.1]

Member, Asi@Connect Expert Committee

Trust Mechanisms and Security Risks in Internet Infrastructure

Internet Behavior Analysis, Security Measurement, and Privacy Protection

Internet Service Abuse Detection and Mitigation

Baojun Liu is a tenure-track associate professor and PhD supervisor at Tsinghua University’s Institute for Network Sciences and Cyberspace (INSC), director of the Network and Information System Security Lab, and a jointly appointed expert at Zhongguancun Laboratory. He received his doctorate from Tsinghua University in 2020, joined its faculty after completing postdoctoral research in 2022, and was selected for a national young talent program in 2023.
His research addresses the security of Internet infrastructure and services, with a focus on Internet trust and security. Using Internet measurement and empirical analysis, he examines authentication, authorization, service dependencies, and the consistency and reliability of cross-service trust in DNS, public key infrastructure (PKI), and email. This work identifies risks and informs protection across three dimensions: mechanisms, including trust relationships and security guarantees; operation, including real-world deployment and privacy risks; and ecosystems, including abuse behavior, resource dependencies, and service interconnections for threat detection and mitigation. His research also extends to security boundaries in large language model applications.
As principal investigator, he leads projects under the national Cybersecurity 2030 major science and technology program, the National Key R&D Program’s cybersecurity young scientists initiative, and the National Natural Science Foundation of China’s young scientists program. He teaches Computer Network Security Technology and has coauthored two textbooks on network security. His research has appeared at leading security and measurement venues, including IEEE S&P, USENIX Security, ACM CCS, NDSS, ACM IMC, and ACM SIGMETRICS.

2026: Distinguished Paper Award (DNS Bailiwick), Network and Distributed System Security Symposium (NDSS)

2026: Distinguished Paper Award (Email Aliases), Network and Distributed System Security Symposium (NDSS)

2025: Honorable Mention, USENIX Security Symposium

2023: Outstanding Paper Award, ACM Conference on Computer and Communications Security (CCS)

2023: Inaugural Internet Fundamental Technology Contribution Award

2022: ACM China Computer Security Chapter "Rising Star Award"

2020: "Shuimu Scholar" Fellowship, Tsinghua University

2020: Applied Networking Research Prize, Internet Society (ISOC) and Internet Research Task Force (IRTF)

2020: Best Paper Award, IEEE/IFIP International Conference on Dependable Systems and Networks (DSN)

2019: Distinguished Paper Award, Network and Distributed System Security Symposium (NDSS)

2019: Best Paper Nomination & Community Contribution Nomination, Internet Measurement Conference (IMC)

Publications
Source: https://www.liubaojun.org/publications.html; As of: 2026-10-25.

[82] Ruixuan Li, Liying Duan, Yunyi Zhang, Mingxuan Liu, Baojun Liu, Qingfeng Pan. “Tracking the Shadows: A Longitudinal, End-to-End Analysis of the Criminal Ecosystem for Email Account Compromise”. Network and Distributed System Security Symposium (NDSS), 2027.
[81] Hanqing Zhao, Yiming Zhang, Lingyun Ying, Zi-Quan You, Baojun Liu, Haixin Duan, Shuhao Zhang, Huquan Jin. “Standards-to-Surface: A Comprehensive Evaluation of Windows Code-Signing (Non)Compliance”. Network and Distributed System Security Symposium (NDSS), 2027.
[80] Yijing Liu, Zilong Lin, XiaoFeng Wang, Baojun Liu, Haixin Duan. “Marketplace Chameleons: Demystifying the Scam Ecosystem of Second-Hand Online Platforms”. Network and Distributed System Security Symposium (NDSS), 2027.
[79] Yunpeng Xing, Chaoyi Lu, Baojun Liu, Ruixuan Li, Haixin Duan. “Traffic Shadowing: A Global Investigation of Internet Traffic Observation and User Data Reutilization”. IEEE Transactions on Networking, 2026.
[78] Jiasheng Huang, Mingxuan Liu, Pei Chen, Baojun Liu, Yiming Zhang, Geng Hong, Zhenrui Zhang, Hai Yang, Haixin Duan, Hui Jiang. “One Click to Leak: Characterizing the Real-World Usage and Threat Impact of MNO-based Single Sign-On Websites”. ACM SIGSAC Conference on Computer and Communications Security (CCS), 2026.
[77] Yiming Zhang, Hang Zhou, Tao Wan, Haixin Duan, Liqian Hao, Baojun Liu, Chaoyi Lu, Jingying Zhou. “Unintended Revelations and Risks: Understanding Cellular DNS Leakage on the Public Internet”. ACM Internet Measurement Conference (IMC), 2026.
[76] Ruixuan Li, Enlong Li, Mingxuan Liu, Baojun Liu, Haixin Duan, Qingfeng Pan. “When Delivery Meets Error: Exploring Email Delivery Retry Strategies and Defects”. ACM Internet Measurement Conference (IMC), 2026.
[75] Shiming Liu, Yunyi Zhang, Ruixuan Li, Shiyao Guo, Baojun Liu, Donghong Sun, Yong Ma, Linjian Song. “The Trade-off Between Performance and Security: Exploring Vulnerabilities in DNS Task Queue Scheduling”. ACM SIGSAC Conference on Computer and Communications Security (CCS), 2026.
[74] Shiming Liu, Yunyi Zhang, Chaoyi Lu, Baojun Liu, Shuhan Zhang, Donghong Sun, Yong Ma, Linjian Song. “Good Cache, BAD Cache: Exploiting DNSSEC Validation Failures for DNS Cache Poisoning Attacks”. ACM SIGSAC Conference on Computer and Communications Security (CCS), 2026.
[73] Yijing Liu, Yiming Zhang, Baojun Liu, Haixin Duan. “Cracks in the Walled Garden: Dissecting the Gray-Market of Unauthorized iOS App Distribution via Ad Hoc Sideloading”. 35th USENIX Security Symposium (USENIX Security), 2026.
[72] Lijie Wu, Xiaoping Zhang, Mingxuan Liu, Yue Qin, Baojun Liu, Geng Hong, Zhenrui Zhang, Chenghui Wu, Hui Jiang. “Shielding QR Codes: Unveiling the Real-World Illicit Promotion Behind Adversarial QR Code”. 35th USENIX Security Symposium (USENIX Security), 2026.
[71] Ruixuan Li, Xingyu Zhao, Yunyi Zhang, Baojun Liu, Jun Shao. “Alias Equals Zone? Large-Scale and Stealthy Takeover of Domain Hosting Service via CNAME-Following Cross-Domain Verification”. 35th USENIX Security Symposium (USENIX Security), 2026.
[70] Pei Chen, Geng Hong, Xinyi Wu, Mengying Wu, Zixuan Zhu, Mingxuan Liu, Baojun Liu, Mi Zhang, Min Yang. “Unveiling the Resilience of LLM-Enhanced Search Engines Against Black-Hat SEO Manipulation”. The ACM Web Conference (WWW), 2026.
[69] Shibo Cui, Mingxuan Liu, Baojun Liu, Haixin Duan, Ruixuan Li, Chaoyi Lu, Jin Zhang, Zhicheng Wang, Jinghua Bai. “Characterizing Iran's Phased National Internet Shutdown in 2025: A Progressive and Distributed Action”. The ACM Web Conference (WWW), 2026.
[68] Zhifan Jiang, Mingxuan Liu, Yue Qin, Baojun Liu. “Breaking Free from Ivory Tower: Evaluating and Enhancing Real-world Chinese Underground Adversarial Jargon Detection”. IEEE Symposium on Security and Privacy (S&P), 2026.
[67] Mengying Wu, Geng Hong, Jiatao Chen, Mingxuan Liu, Baojun Liu, Min Yang. “One Email, Many Faces: A Deep Dive into Identity Confusion in Email Aliases”. 33rd Annual Network and Distributed System Security Symposium (NDSS), 2026. NDSS Distinguished Paper Award.
[66] Yunyi Zhang, Shibo Cui, Baojun Liu, Jingkai Yu, Min Zhang, Fan Shi, Han Zheng. “Beyond Jailbreak: Unveiling Risks in LLM Applications Arising from Blurred Capability Boundaries”. 33rd Annual Network and Distributed System Security Symposium (NDSS), 2026.
[65] Hanqing Zhao, Yiming Zhang, Lingyun Ying, Mingming Zhang, Baojun Liu, Haixin Duan, Zi-Quan You, Shuhao Zhang. “Understanding the Status and Strategies of the Code Signing Abuse Ecosystem”. 33rd Annual Network and Distributed System Security Symposium (NDSS), 2026.
[64] Ruixuan Li, Chaoyi Lu, Baojun Liu, Yanzhong Lin, Qingfeng Pan, Jun Shao. “CoordMail: Exploiting SMTP Timeout and Command Interaction to Coordinate Email Middleware for Convergence Amplification Attack”. 33rd Annual Network and Distributed System Security Symposium (NDSS), 2026.
[63] Yuxiao Wu, Yunyi Zhang, Chaoyi Lu, Baojun Liu. “Should I Trust You? Rethinking the Principle of Zone-Based Isolation DNS Bailiwick Checking”. 33rd Annual Network and Distributed System Security Symposium (NDSS), 2026. NDSS Distinguished Paper Award.
[62] Yijing Liu, Mingxuan Liu, Yiming Zhang, Baojun Liu, Jia Zhang, Geng Hong, Haixin Duan, Min Yang. “Dive into the cloud: Unveiling the (Ab)usage of Serverless Cloud Function in the Wild”. ACM Internet Measurement Conference (IMC), 2025.
[61] Jia Yao, Yiming Zhang, Baojun Liu, Zhan Liu, Mingming Zhang, Haixin Duan. “Chaos in the Chain: Evaluate Deployment and Construction Compliance of Web PKI Certificate Chain”. ACM Internet Measurement Conference (IMC), 2025.
[60] Mingming Zhang, Jinfeng Guo, Yiming Zhang, Shenglin Zhang, Baojun Liu, Hanqing Zhao, Xiang Li, Haixin Duan. “Analyzing Compliance and Complications of Integrating Internationalized X.509 Certificates”. ACM Internet Measurement Conference (IMC), 2025.
[59] Ruixuan Li, Chaoyi Lu, Baojun Liu, Yanzhong Lin, Haixin Duan, Qingfeng Pan, Jun Shao. “Understanding and Characterizing Intermediate Paths of Email Delivery: The Hidden Dependencies”. ACM Internet Measurement Conference (IMC), 2025.
[58] Xiang Li, Mingming Zhang, Zuyao Xu, Fasheng Miao, Yuqi Qiu, Baojun Liu, Jia Zhang, Xiaofeng Zhang, Haixin Duan, Zheli Liu, Yunhai Zhang, Dunqiu Fan. “RebirthDay Attack: Reviving DNS Cache Poisoning with the Birthday Paradox”. ACM Conference on Computer and Communications Security (CCS), 2025.
[57] Dashuai Wu, Yunyi Zhang, Baojun Liu, Xiang Li, Eihal Alowaisheq, Haixin Duan. “Exploring and Analyzing Cross Layer DoS Attack Against UDP-based Services on Linux”. ACM Conference on Computer and Communications Security (CCS), 2025.
[56] Bingyang Guo, Mingxuan Liu, Yihui Ma, Ruixuan Li, Fan Shi, Min Zhang, Baojun Liu, Chengxi Xu, Haixin Duan, Geng Hong, Min Yang, Qingfeng Pan. “Email Cloaking: Deceiving Users and Spam Email Detectors with Invisible HTML Settings”. European Symposium on Research in Computer Security (ESORICS), 2025.
[55] Mingming Zhang, Yunyi Zhang, Baojun Liu, Haixin Duan, Min Zhang, Fan Shi, Chengxi Xu. “Misty Registry: An Empirical Study of Flawed Domain Registry Operation”. USENIX Security Symposium, 2025.
[54] Mingxuan Liu, Yunyi Zhang, Lijie Wu, Baojun Liu, Geng Hong, Yinming Zhang, Hui Jiang, Jia Zhang, Haixin Duan, Min Zhang, Wei Guan, Fan Shi, Min Yang. “NOKEScam: Understanding and Rectifying Non-Sense Keywords Spear Scam in Search Engines”. USENIX Security Symposium, 2025.
[53] Shuhan Zhang, Shuai Wang, Li Chen, Dan Li, Baojun Liu. “Your Shield is My Sword: A Persistent Denial-of-Service Attack via the Reuse of Unvalidated Caches in DNSSEC Validation”. 34th USENIX Security Symposium (USENIX Security), 2025. USENIX Security Honorable Mention.
[52] Jinsong Chen, Mengying Wu, Geng Hong, Baichao An, Mingxuan Liu, Lei Zhang, Baojun Liu, Haixin Duan, Min Yang. “Beyond Exploit Scanning: A Functional Change-Driven Approach to Remote Software Version Identification”. USENIX Security Symposium, 2025.
[51] Qihang Peng, Mingming Zhang, Deliang Chang, Jia Zhang, Baojun Liu, Haixin Duan. “Decoding DNS Centralization: Measuring and Identifying NS Domains Across Hosting Providers”. 55th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), 2025.
[50] Wuyuao Mai, Geng Hong, Pei Chen, Xudong Pan, Baojun Liu, Yuan Zhang, Haixin Duan, Min Yang. “You Can't Eat Your Cake and Have It Too: The Performance Degradation of LLMs with Jailbreak Defense”. ACM Web Conference (WWW), 2025.
[49] Mengying Wu, Geng Hong, Jinsong Chen, Qi Liu, Shujun Tang, Youhao Li, Baojun Liu, Haixin Duan, Min Yang. “Revealing the Black Box of Device Search Engine: Scanning Assets, Strategies, and Ethical Consideration”. 32nd Annual Network and Distributed System Security Symposium (NDSS), 2025.
[48] Ruixuan Li, Chaoyi Lu, Baojun Liu, Yunyi Zhang, Geng Hong, Haixin Duan, Yanzhong Lin, Qingfeng Pan, Min Yang, Jun Shao. “HADES Attack: Understanding and Evaluating Manipulation Risks of Email Blocklists”. 32nd Annual Network and Distributed System Security Symposium (NDSS), 2025.
[47] Fenglu Zhang, Baojun Liu, Chaoyi Lu, Yunpeng Xing, Haixin Duan, Ying Liu, Liyuan Chang. “Investigating Deployment Issues of DNS Root Server Instances From a China-Wide View”. *IEEE Transactions on Dependable and Secure Computing*, 2024.
[46] Ruixuan Li, Shaodong Xiao, Baojun Liu, Yanzhong Lin, Haixin Duan, Qingfeng Pan, Jianjun Chen, Jia Zhang, Ximeng Liu, Xiuqi Lu, Jun Shao. “Bounce in the Wild: A Deep Dive into Email Delivery Failures from a Large Email Service Provider”. ACM Internet Measurement Conference (IMC), 2024.
[45] Yunpeng Xing, Chaoyi Lu, Baojun Liu, Haixin Duan, Junzhe Sun, Zhou Li. “Yesterday Once More: Global Measurement of Internet Traffic Shadowing Behaviors”. ACM Internet Measurement Conference (IMC), 2024.
[44] Yunyi Zhang, Mingming Zhang, Baojun Liu, Zhan Liu, Jia Zhang, Haixin Duan, Min Zhang, Fan Shi, Chengxi Xu. “Cross the Zone: Toward a Covert Domain Hijacking via Shared DNS Infrastructure”. USENIX Security Symposium, 2024.
[43] Yunyi Zhang, Mingxuan Liu, Baojun Liu, Yiming Zhang, Haixin Duan, Min Zhang, Hui Jiang, Yanzhe Li, Fan Shi. “Into the Dark: Unveiling Internal Site Search Abused for Black Hat SEO”. USENIX Security Symposium, 2024.
[42] Yunyi Zhang, Baojun Liu, Haixin Duan, Min Zhang, Xiang Li, Fan Shi, Chengxi Xu, Eihal Alowaisheq. “Rethinking the Security Threats of Stale DNS Glue Records”. USENIX Security Symposium, 2024.
[41] Yijing Liu, Yiming Zhang, Baojun Liu, Haixin Duan, Qiang Li, Mingxuan Liu, Ruixuan Li, Jia Yao. “Tickets or Privacy? Understand the Ecosystem of Chinese Ticket Grabbing Apps”. USENIX Security Symposium, 2024.
[40] Mingxuan Liu, Zhenglong Jin, Jiahai Yang, Baojun Liu, Haixin Duan, Ying Liu, Ximeng Liu, Shujun Tang. “ChatScam: Unveiling the Rising Impact of ChatGPT on Domain Name Abuse”. 54th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), 2024.
[39] Ruixuan Li, Baojun Liu, Chaoyi Lu, Haixin Duan, Jun Shao. “A Worldwide View on the Reachability of Encrypted DNS Services”. ACM Web Conference (WWW), 2024.
[38] Xiang Li, Wei Xu, Baojun Liu, Mingming Zhang, Zhou Li, Jia Zhang, Deliang Chang, Xiaofeng Zheng, Chuhan Wang, Jianjun Chen, Haixin Duan, Qi Li. “TuDoor Attack: Systematically Exploring and Exploiting Logic Vulnerabilities in DNS Response Pre-processing with Malformed Packets”. IEEE Symposium on Security and Privacy (SP), 2024.
[37] Mingxuan Liu, Yiming Zhang, Xiang Li, Chaoyi Lu, Baojun Liu, Haixin Duan, Xiaofeng Zheng. “Understanding the Implementation and Security Implications of Protective DNS Services”. 31st Annual Network and Distributed System Security Symposium (NDSS), 2024.
[36] Zhenrui Zhang, Geng Hong, Xiang Li, Zhuoqun Fu, Jia Zhang, Mingxuan Liu, Chuhan Wang, Jianjun Chen, Baojun Liu, Haixin Duan, Chao Zhang, Min Yang. “Under the Dark: A Systematical Study of Stealthy Mining Pools (Ab)use in the Wild”. ACM Conference on Computer and Communications Security (CCS), 2023.
[35] Wei Xu, Xiang Li, Chaoyi Lu, Baojun Liu, Haixin Duan, Jia Zhang, Jianjun Chen, Tao Wan. “TsuKing: Coordinating DNS Resolvers and Queries into Potent DoS Amplifiers”. ACM Conference on Computer and Communications Security (CCS), 2023.
[34] Fenglu Zhang, Baojun Liu, Eihal Alowaisheq, Jianjun Chen, Chaoyi Lu, Linjian Song, Yong Ma, Ying Liu, Haixin Duan, Min Yang. “Silence is not Golden: Disrupting the Load Balancing of Authoritative DNS Servers”. ACM SIGSAC Conference on Computer and Communications Security (CCS), 2023. ACM CCS Distinguished Paper Award.
[33] Fenglu Zhang, Yunyi Zhang, Baojun Liu, Eihal Alowaisheq, Lingyun Ying, Xiang Li, Zaifeng Zhang, Ying Liu, Haixin Duan, Min Zhang. “Wolf in Sheep's Clothing: Evaluating Security Risks of the Undelegated Record on DNS Hosting Services”. ACM Internet Measurement Conference (IMC), 2023.
[32] Run Guo, Jianjun Chen, Yihang Wang, Keran Mu, Baojun Liu, Xiang Li, Chao Zhang, Haixin Duan, Jianping Wu. “Temporal CDN-Convex Lens: A CDN-Assisted Practical Pulsing DDoS Attack”. 32nd USENIX Security Symposium (USENIX Security), 2023.
[31] Xiang Li, Chaoyi Lu, Baojun Liu, Qifan Zhang, Zhou Li, Haixin Duan, Qi Li. “The Maginot Line: Attacking the Boundary of DNS Caching Protection”. 32nd USENIX Security Symposium (USENIX Security), 2023.
[30] Fenglu Zhang, Baojun Liu, Eihal Alowaisheq, Jianjun Chen, Chaoyi Lu, Linjian Song, Yong Ma, Ying Liu, Haixin Duan, Min Yang. “Silence is not Golden: Disrupting the Load Balancing of Authoritative DNS Servers”. ACM Turing Award Celebration Conference - China (TURC), 2023.
[29] Mingming Zhang, Xiang Li, Baojun Liu, Jianyu Lu, Yiming Zhang, Jianjun Chen, Haixin Duan, Shuang Hao, Xiaofeng Zheng. “Detecting and Measuring Security Risks of Hosting-Based Dangling Domains”. ACM SIGMETRICS International Conference on Measurement and Modeling of Computer Systems (SIGMETRICS), 2023.
[28] Xiang Li, Baojun Liu, Xuesong Bai, Mingming Zhang, Qifan Zhang, Zhou Li, Haixin Duan, Qi Li. “Ghost Domain Reloaded: Vulnerable Links in Domain Name Delegation and Revocation”. 30th Annual Network and Distributed System Security Symposium (NDSS), 2023.
[27] Mingxuan Liu, Yiming Zhang, Baojun Liu, Haixin Duan. “Exploring the Characteristics and Security Risks of Emerging Emoji Domain Names”. 27th European Symposium on Research in Computer Security (ESORICS), 2022.
[26] Chuhan Wang, Kaiwen Shen, Minglei Guo, Yuxuan Zhao, Mingming Zhang, Jianjun Chen, Baojun Liu, Xiaofeng Zheng, Haixin Duan, Yanzhong Lin, Qingfeng Pan. “A Large-scale and Longitudinal Measurement Study of DKIM Deployment”. 31st USENIX Security Symposium (USENIX Security), 2022.
[25] Qinge Xie, Shujun Tang, Xiaofeng Zheng, Qingran Lin, Baojun Liu, Haixin Duan, Frank Li. “Building an Open, Robust, and Stable Voting-Based Domain Top List”. 31st USENIX Security Symposium (USENIX Security), 2022.
[24] Huikai Xu, Miao Yu, Yanhao Wang, Yue Liu, Qinsheng Hou, Zhenbang Ma, Haixin Duan, Jianwei Zhuge, Baojun Liu. “Trampoline Over the Air: Breaking in IoT Devices Through MQTT Brokers”. 7th IEEE European Symposium on Security and Privacy (EuroS&P), 2022.
[23] Xuewei Feng, Qi Li, Kun Sun, Ke Xu, Baojun Liu, Xiaofeng Zheng, Qiushi Yang, Haixin Duan, Zhiyun Qian. “PMTUD is not Panacea: Revisiting IP Fragmentation Attacks against TCP”. 29th Annual Network and Distributed System Security Symposium (NDSS), 2022.
[22] Fenglu Zhang, Chaoyi Lu, Baojun Liu, Haixin Duan, Ying Liu. “Measuring the Practical Effect of DNS Root Server Instances: A China-Wide Case Study”. Passive and Active Measurement (PAM) Conference, 2022.
[21] Deliang Chang, Shanshan Hao, Zhou Li, Baojun Liu, Xing Li. “DNSWeight: Quantifying Country-Wise Importance of Domain Name System”. *IEEE Access*, 2021.
[20] Mingxuan Liu, Yiming Zhang, Baojun Liu, Zhou Li, Haixin Duan, Donghong Sun. “Detecting and Characterizing SMS Spearphishing Attacks”. Annual Computer Security Applications Conference (ACSAC), 2021.
[19] Yiming Zhang, Baojun Liu, Chaoyi Lu, Zhou Li, Haixin Duan, Jiachen Li, Zaifeng Zhang. “Rusted Anchors: A National Client-Side View of Hidden Root CAs in the Web PKI Ecosystem”. ACM Conference on Computer and Communications Security (CCS), 2021.
[18] Kaiwen Shen, Chuhan Wang, Xiaofeng Zheng, Minglei Guo, Chaoyi Lu, Baojun Liu, Yuxuan Zhao, Shuang Hao, Haixin Duan, Qingfeng Pan, Min Yang. “Weak Links in Authentication Chains: A Large-scale Analysis of Email Sender Authentication”. 30th USENIX Security Symposium (USENIX Security), 2021.
[17] Xiang Li, Baojun Liu, Xiaofeng Zheng, Haixin Duan, Qi Li, Youjun Huang. “Fast IPv6 Network Periphery Discovery and Security Implications”. 51st Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), 2021.
[16] Chaoyi Lu, Baojun Liu, Yiming Zhang, Zhou Li, Fenglu Zhang, Haixin Duan, Ying Liu, Joann Qiongna Chen, Jinjin Liang, Zaifeng Zhang, Shuang Hao, Min Yang. “From WHOIS to WHOWAS: A Large-Scale Measurement Study of Domain Name Registration Privacy”. 28th Annual Network and Distributed System Security Symposium (NDSS), 2021.
[15] Mingming Zhang, Xiaofeng Zheng, Kaiwen Shen, Ziqiao Kong, Chaoyi Lu, Yu Wang, Haixin Duan, Shuang Hao, Baojun Liu, Min Yang. “Talking with Familiar Strangers: An Empirical Study on HTTPS Context Confusion Attacks”. ACM SIGSAC Conference on Computer and Communications Security (CCS), 2020.
[14] Yiming Zhang, Baojun Liu, Chaoyi Lu, Zhou Li, Haixin Duan, Shuang Hao, Mingxuan Liu, Ying Liu, Dong Wang, Qiang Li. “Lies in the Air: Characterizing Fake-base-station Spam Ecosystem”. ACM SIGSAC Conference on Computer and Communications Security (CCS), 2020.
[13] Xiaofeng Zheng, Chaoyi Lu, Jian Peng, Qiushi Yang, Dongjie Zhou, Baojun Liu, Keyu Man, Shuang Hao, Haixin Duan, Zhiyun Qian. “Poison Over Troubled Forwarders: A Cache Poisoning Attack Targeting DNS Forwarding Devices”. USENIX Security Symposium, 2020.
[12] Weizhong Li, Kaiwen Shen, Run Guo, Baojun Liu, Jia Zhang, Haixin Duan, Shuang Hao, Xiarun Chen, Yao Wang. “CDN Backfired: Amplification Attacks Based on HTTP Range Requests”. IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), 2020. IEEE/IFIP DSN Best Paper Award.
[11] Run Guo, Weizhong Li, Baojun Liu, Shuang Hao, Jia Zhang, Haixin Duan, Kaiwen Shen, Jianjun Chen, Ying Liu. “CDN Judo: Breaking the CDN DoS Protection with Itself”. Network and Distributed System Security Symposium (NDSS), 2020.
[10] Chaoyi Lu, Baojun Liu, Zhou Li, Shuang Hao, Haixin Duan, Mingming Zhang, Chunying Leng, Ying Liu, Zaifeng Zhang, Jianping Wu. “An End-to-End, Large-Scale Measurement of DNS-over-Encryption: How Far Have We Come?”. ACM Internet Measurement Conference (IMC), 2019. ISOC Applied Networking Research Award (ANRP) 2020.
[9] Kun Du, Hao Yang, Zhou Li, Haixin Duan, Shuang Hao, Baojun Liu, Yuxiao Ye, Mingxuan Liu, Xiaodong Su, Guang Liu, Zhifeng Geng, Zaifeng Zhang, Jinjin Liang. “TL;DR Hazard: A Comprehensive Study of Levelsquatting Scams”. International Conference on Security and Privacy in Communication Networks (SecureComm), 2019.
[8] Baojun Liu, Zhou Li, Peiyuan Zong, Chaoyi Lu, Haixin Duan, Ying Liu, Sumayah Alrwais, Xiaofeng Wang, Shuang Hao, Yaoqi Jia, Yiming Zhang, Kai Chen, Zaifeng Zhang. “TraffickStop: Detecting and Measuring Illicit Traffic Monetization Through Large-Scale DNS Log Analysis”. IEEE European Symposium on Security and Privacy (EuroS&P), 2019.
[7] Xianghang Mi, Xuan Feng, Xiaojing Liao, Baojun Liu, Xiaofeng Wang, Feng Qian, Zhou Li, Sumayah Alrwais, Limin Sun, Ying Liu. “Resident Evil: Understanding Residential IP Proxy as a Dark Service”. IEEE Symposium on Security and Privacy (S&P), 2019.
[6] Eihal Alowaisheq, Peng Wang, Sumayah Alrwais, Xiaojing Liao, Xiaofeng Wang, Tasneem Alowaisheq, Xianghang Mi, Siyuan Tang, Baojun Liu. “Cracking the Wall of Confinement: Understanding and Analyzing Malicious Domain Take-downs”. Network and Distributed System Security Symposium (NDSS), 2019. NDSS Best Paper Award.
[5] Run Guo, Jianjun Chen, Baojun Liu, Jia Zhang, Chao Zhang, Haixin Duan, Tao Wan, Jian Jiang, Shuang Hao, Yaoqi Jia. “Abusing CDNs for Fun and Profit: Security Issues in CDNs' Origin Validation”. IEEE International Symposium on Reliable Distributed Systems (SRDS), 2018.
[4] Mingming Zhang, Baojun Liu, Chaoyi Lu, Jia Zhang, Shuang Hao, Haixin Duan. “Measuring Privacy Threats in China-Wide Mobile Networks”. USENIX Workshop on Free and Open Communications on the Internet (FOCI), 2018.
[3] Baojun Liu, Chaoyi Lu, Haixin Duan, Ying Liu, Zhou Li, Shuang Hao, Min Yang. “Who is answering my queries: Understanding and Characterizing Interception of the DNS Resolution Path”. USENIX Security Symposium, 2018.
[2] Baojun Liu, Chaoyi Lu, Zhou Li, Ying Liu, Haixin Duan, Shuang Hao, Zaifeng Zhang. “A Reexamination of Internationalized Domain Names: the Good, the Bad and the Ugly”. IEEE/IFIP International Conference on Dependable Systems and Networks (DSN), 2018.
[1] Daiping Liu, Zhou Li, Kun Du, Haining Wang, Baojun Liu, Haixin Duan. “Don't Let One Rotten Apple Spoil the Whole Barrel: Towards Automated Detection of Shadowed Domains”. ACM SIGSAC Conference on Computer and Communications Security (CCS), 2017.