A Survey on Abnormal Transaction Behaviors of Blockchain Systems

PhD Qualifying Examination


Title: "A Survey on Abnormal Transaction Behaviors of Blockchain Systems"

by

Miss Lu LIU


Abstract:

Since smart contracts are immutable once deployed and most of them involve 
transfers of cryptocurrency, the exploitation of smart contracts often 
leads to severe financial losses. Various studies have been conducted from 
smart contracts perspectives to detect vulnerabilities on blockchain 
platforms. However, these techniques show limitations on inspecting and 
understanding real-world blockchain attacks which can only be obtained 
from on-chain transaction data. These transaction data help reveal 
forensic information of blockchains, such as attack patterns, addresses 
used by attackers, and addresses of victims.

In this survey, we conduct a systematic survey on abnormal transaction 
behaviors in blockchain systems. We categorize the related research works 
into three categories, transaction log analysis, contract code analysis, 
and combined analysis, based on the types of data they used. We discuss 
some empirical study findings on transaction behavior analysis. We briefly 
give an overview of techniques and summarize representative works for each 
research category. We further discuss the limitation of existing works and 
point out some possible research directions to guide future research.


Date:			Friday, 20 August 2021

Time:                  	10:00am - 12:00noon

Zoom meeting:
https://hkust.zoom.us/j/96994112085?pwd=UW1TaytUYjZFQkEvTDlDbWtuTGFQdz09

Committee Members:	Prof. Shing-Chi Cheung (Supervisor)
 			Dr. Yepang Liu (Supervisor)
 			Dr. Charles Zhang (Chairperson)
 			Dr. Shuai Wang
 			Prof. Raymond Wong


**** ALL are Welcome ****