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  • Writer's pictureInfosec In the City (IIC)

Writing Wireshark Plugins for Security Analysis — by Nishant Sharma & Jeswin Mathai

SINCON 2020 Conference Workshop Track

Day 2 (3 Jan 2021)


@ Workshop Room


Network traffic always proves to be a gold mine when mined with proper tools. There are various open-source and paid tools to analyze the traffic but most of them either have predefined functionality or scalability issues or one of a dozen other problems. And, in some cases when we are dealing with non-standard protocols, the analysis becomes more difficult. But, what if we can extend our favorite traffic analysis tool Wireshark to accommodate our requirements? As most people know, Wireshark supports custom plugins created in C and Lua which can be used to analyze or dissect the packets. In this workshop, we will learn the basics of Wireshark plugins and move on to create different types of plugins to perform dissection of non-standard protocol, provide macro statistics, detect attacks, etc. We will use examples of older and newer protocols (including non-standard ones) to understand the plugin workflow and development.

About the Instructors

NISHANT SHARMA (@wifisecguy) is an R&D Manager at Pentester Academy and Attack Defense. He is also the Architect at Hacker Arsenal where he leads the development of multiple gadgets for WiFi pentesting such as WiMonitor, WiNX and WiMini. He also handles technical content creation and moderation for Pentester Academy TV. He has 7+ years of experience in the information security field including 5+ years in WiFi security research and development. He has presented/published his work at Black Hat USA/Asia, DEF CON China, Wireless Village, IoT village and Demo labs (DEFCON USA). Prior to joining Pentester Academy, he worked as a firmware developer at Mojo Networks where he contributed in developing new features for the enterprise-grade WiFi APs and maintaining the state of art WiFi Intrusion Prevention System (WIPS). He has a Master's degree in Information Security from IIIT Delhi. He has also published peer-reviewed academic research on HMAC security. His areas of interest include WiFi and IoT security, AD security, Forensics and Cryptography.

JESWIN MATHAI (@jeswinmathai) is a Researcher at Pentester Academy and Attack Defense. He has presented/published his work at DEF CON China, Black Hat Arsenal and Demo labs (DEFCON). He has a Bachelor's degree from IIIT Bhubaneswar. He was the team lead at InfoSec Society IIIT Bhubaneswar in association with CDAC and ISEA, which performed security auditing of government portals, conducted awareness workshops for government institutions. He was also the part of team Pied Piper who won Smart India Hackathon 2017, a national level competition organized by GoI. His area of interest includes Malware Analysis and Reverse Engineering, Cryptography, WiFi security and Web Application Security.

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