14 0 0 .299 .587 .114 0 0 ">
HITB-Invoice-Logo

thank you for joining us!

COMMSEC LAB: A Practical Approach to Advanced Code Obfuscation with MBA Expressions

Date

August 26, 2022

Time

14:00

Track

CommSec Track

One of the foundational blocks of current state-of-the-art code obfuscation are Mixed Boolean-Arithmetic (MBA) expressions: those combining both integer arithmetic and bitwise operators. Such expressions can be leveraged to arbitrarily increase the data-flow complexity of targeted code by iteratively applying rewrite rules and function identities which mess the syntax while preserving its semantic behavior. They can also be leveraged to conceal sensitive data that must be accessible through the program in runtime: cryptographic keys, known constants for hashing algorithms, etc. The use of such expressions is motivated by the fact that combinations of operators from these different fields do not interact well together: we have no rules (distributivity, factorization…) or general theory to deal with this mixing of operators.

Through the course of this 2 hour session, we will explore how to apply MBA transformations to build robust obfuscation primitives from a practical standpoint: ranging from opaque predicates to VM-handlers of a virtualization based obfuscation scheme.

Speakers

Researcher

National University Singapore

Dr. Wang Kailong is currently a research fellow at National University of Singapore (NUS). He received his PhD degree from School of Computing NUS in 2022. He has worked as a Research Assistant in NUS while pursuing his PhD degree from 2016 to 2021. His research interests include mobile and web security and privacy, and protocol verification. His works have appeared in the top conferences such as WWW and MobiCom.

Co-Founder & CTO

Authomize

Mr. Gal Diskin is a cybersecurity and AI researcher. He was previously the VP & head of Palo Alto Networks’ Israeli site, and is a serial entrepreneur. Mr. Diskin’s research has been featured in HITB, Defcon, Black Hat, CCC, and other conferences, spanning fields from low level security research such as hardware vulnerabilities, binary instrumentation, and car hacking to high level research on AI detection methods, Enterprise security, and Identity security. Mr. Diskin was also the technical lead and co-founder of Intel’s software security organization, as well as the CTO of Cyvera and HeXponent (co-founder) before their acquisition.

Senior Security Researcher

Huajiang “Kevin2600” Chen (Twitter: @kevin2600) is a senior security researcher. He mainly focuses on vulnerability research in wireless and Vehicle security. He is a winner of GeekPwn 2020 and also made to the Tesla hall of fame 2021. Kevin2600 has spoken at various conferences including KCON; DEFCON and CANSECWEST.

Security Researcher

Li Siwei is a security researcher. He specializes in Big data analysis and AI Security.

Founder, CEO

CloudSEK

Rahul Sasi is an Indian entrepreneur, Founder of CloudSEK, and a security expert. He was voted as the top influential Cyber Security person in 2015, he has made a significant open source contribution to the security landscape and is an invited speaker to over 20+ countries. He is part of the working committees of RBI and MeitY.
CloudSEK : https://cloudsek.com/
LinkedIn: https://www.linkedin.com/in/fb1h2s/

Senior Security Engineer

CloudSEK

Vishal Singh is working as a Senior Security Engineer at CloudSEK. His main responsibility includes handling the Research & Development of CloudSEK ASM. He loves automating manual effort tasks, and also likes net surfing & exploring new places in his free time.

Other Talks in This Track

LOCATION

CommSec Track

DATE

August 26

TIME

16:30

LOCATION

CommSec Track

DATE

August 26

TIME

17:30

LOCATION

CommSec Track

DATE

August 26

TIME

12:00