I am currently a principal security researcher of Palo Alto Networks. Before joining Palo Alto Networks, I received my Ph.D. in Computer Science and Engineering at the Texas A&M University, College Station in 2019, under the direction of Professor Guofei Gu.
[Email] x.rayyle AT gmail.com
Automatic Synthesis of Network Security Services:A First Step.
Lei Xu, Yangyong Zhang, Phakpoom Chinprutthiwong, Guofei Gu.
In the 32nd International Conference on Computer Communications and Networks (ICCCN’23), USA, 2023.
SysFlow: Towards a Programmable Zero Trust Framework for System Security.
[Sungmin Hong, Lei Xu], Jianwei Huang, Hongda Li, Hongxin Hu, Guofei Gu.
In IEEE Transactions on Information Forensics and Security (TIFS), 2023.
(co-first author)
Control Plane Reflection Attacks and Defenses in Software-Defined Networks.
Menghao Zhang, Guanyu Li, Lei Xu, Jiasong Bai, Mingwei Xu, Guofei Gu, Jianping Wu.
IEEE/ACM Transactions on Networking (TON), vol. 29, no. 2, pp. 623-636, April 2021.
Life after Speech Recognition: Fuzzing Semantic Misinterpretation for Voice Assistant Applications.
Yangyong Zhang, Lei Xu, Abner Mendoza, Phakpoom Chinprutthiwong and Guofei Gu.
Proceedings of 26nd Annual Network & Distributed System Security Symposium (NDSS’19), San Diego, CA, USA. February 2019.
Towards Fine-grained Network Forensics and Diagnosis in the SDN Era.
Haopei Wang, Guangliang Yang, Phakpoom Chinprutthiwong, Lei Xu, Yangyong Zhang and Guofei Gu.
Proceedings of the 25th ACM Conference on Computer and Communications Security (CCS’18), Toronto, Canada, October 2018.
Control Plane Reflection Attacks in SDNs: New Attacks and Countermeasures.
Menghao Zhang, Guanyu Li, Lei Xu, Guofei Gu, Jun Bi and Jiasong Bai.
Proc. of the 21th International Symposium on Research on Attacks, Intrusions and Defenses, (RAID’18), 2018.
Effective Topology Tampering Attacks in Software-Defined Networks.
Richard Skowyra, Lei Xu, Guofei Gu, Thomas Hobson, Veer Dedhia, James Landry, Hamed Okhravi.
Proceedings of the 48th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN’18).
Attacking the Brain: Races in the SDN Control Plane.
Lei Xu, Jeff Huang, Sungmin Hong, Jialong Zhang and Guofei Gu.
Proceedings of the of 26th USENIX Security Symposium (USENIX Security’17), Vancouver, BC, Canada, August 2017.
Bring Your Own Controller: Enabling Tenant-defined SDN Apps in IaaS Clouds.
Haopei Wang, Abhinav Srivastava, Lei Xu, Sungmin Hong, Guofei Gu.
Proceedings of 2017 IEEE International Conference on Computer Communications (INFOCOM’17), Atlanta, GA, May 2017.
Enhancing Network Security through Software Defined Networking (SDN).
Seungwon Shin, Lei Xu, Sungmin Hong, Guofei Gu.
Proceedings of The 25th International Conference on Computer Communication and Networks (ICCCN’16), Hawaii, USA, August 2016.
Towards SDN-Defined Programmable BYOD (Bring Your Own Device) Security.
Sungmin Hong, Robert Baykov, Lei Xu, Srinath Nadimpalli, Guofei Gu.
Proceedings of the Network & Distributed System Security Symposium (NDSS’16), San Diego, California, February 2016.
FloodGuard: A DoS Attack Prevention Extension in Software-Defined Networks.
Haopei Wang, Lei Xu, Guofei Gu.
Proceedings of the 45th Annual IEEE/IFIP International Conference on Dependable Systems and Networks (DSN’15), Rio de Janeiro, Brazil, June 2015.
Poisoning Network Visibility in Software-Defined Networks: New Attacks and Countermeasures.
[Sungmin Hong, Lei Xu], Haopei Wang, Guofei Gu.
Proceedings of 22nd Annual Network & Distributed System Security Symposium (NDSS’15), San Diego, CA, USA. February 2015.
(co-first author)
SRID: State Relation based Intrusion Detection for False Data Injection Attacks in SCADA.
Yong Wang, Zhaoyan Xu, Jialong Zhang, Lei Xu, Haopei Wang and Guofei Gu.
Proceedings of the 19th European Symposium on Research in Computer Security (ESORICS’14), Wroclaw, Poland, September 2014.
Inline detection of encrypted malicious network sessions.
Lei Xu, Stefan Achleitner, Yu Fu and Shengming Xu.
US Patent Application 17/447,064 .
Extensible information architecture for enabling programming security in enterprise clouds.
David Ott, Lei Xu and Dennis R. Moreau.
US Patent Application 16/288,681.
Security protection for a host computer in a computer network using cross-domain security-relevant information.
David Ott, Lei Xu, Ruimin Sun, Vijay Ganti and Dennis R. Moreau.
US Patent Application 16/255,551.
Program Committee Member:
IEEE ICC Communication and Information Systems Security Symposium, 2020, 2021, 2022, 2023, 2024.
International Conference on Security and Privacy in DigitalEconomy, Zhengjiang, China, 2020.
ACM SDN-NFV Security Workshop, Dallas, TX, 2016,2018,2019.
Journal Reviewer:
TIFS, 2018, 2019.
TDSC, 2017, 2022, 2023.
Computer Networks, 2020.