93 citations · 313 across the 13 of their papers we have counts for
13 papers · 1 filter
Lifting The Grey Curtain: A First Look at the Ecosystem of CULPRITWARE
Zhuo Chen, Lei Wu, Jing Cheng +6
Mobile apps are extensively involved in cyber-crimes. Some apps are malware which compromise users' devices, while some others may lead to privacy leakage. Apart from them, there a…
VM Matters: A Comparison of WASM VMs and EVMs in the Performance of Blockchain Smart Contracts
Shuyu Zheng, Haoyu Wang, Lei Wu +2
WebAssemly is an emerging runtime for Web applications and has been supported in almost all browsers. Recently, WebAssembly is further regarded to be a the next-generation environm…
Towards Understanding and Demystifying Bitcoin Mixing Services
Lei Wu, Yufeng Hu, Yajin Zhou +5
One reason for the popularity of Bitcoin is due to its anonymity. Although several heuristics have been used to break the anonymity, new approaches are proposed to enhance its anon…
Towards A First Step to Understand Flash Loan and Its Applications in DeFi Ecosystem
Dabao Wang, Siwei Wu, Ziling Lin +5
Flash Loan, as an emerging service in the decentralized finance ecosystem, allows users to request a non-collateral loan. While providing convenience, it also enables attackers to…
Don't Fish in Troubled Waters! Characterizing Coronavirus-themed Cryptocurrency Scams
Pengcheng Xia, Haoyu Wang, Xiapu Luo +6
As COVID-19 has been spreading across the world since early 2020, a growing number of malicious campaigns are capitalizing the topic of COVID-19. COVID-19 themed cryptocurrency sca…
DEPOSafe: Demystifying the Fake Deposit Vulnerability in Ethereum Smart Contracts
Ru Ji, Ningyu He, Lei Wu +3
Cryptocurrency has seen an explosive growth in recent years, thanks to the evolvement of blockchain technology and its economic ecosystem. Besides Bitcoin, thousands of cryptocurre…
Beyond the Virus: A First Look at Coronavirus-themed Mobile Malware
Liu Wang, Ren He, Haoyu Wang +8
As the COVID-19 pandemic emerged in early 2020, a number of malicious actors have started capitalizing the topic. Although a few media reports mentioned the existence of coronaviru…
Time-Travel Investigation: Towards Building A Scalable Attack Detection Framework on Ethereum
Lei Wu, Siwei Wu, Yajin Zhou +5
As one of the representative blockchain platforms, Ethereum has attracted lots of attacks. Due to the existed financial loss, there is a pressing need to perform timely investigati…
Security Analysis of EOSIO Smart Contracts
Ningyu He, Ruiyi Zhang, Lei Wu +5
The EOSIO blockchain, one of the representative Delegated Proof-of-Stake (DPoS) blockchain platforms, has grown rapidly recently. Meanwhile, a number of vulnerabilities and high-pr…
Characterizing EOSIO Blockchain
Yuheng Huang, Haoyu Wang, Lei Wu +6
EOSIO has become one of the most popular blockchain platforms since its mainnet launch in June 2018. In contrast to the traditional PoW-based systems (e.g., Bitcoin and Ethereum),…
Automated Deobfuscation of Android Native Binary Code
Zeliang Kan, Haoyu Wang, Lei Wu +2
With the popularity of Android apps, different techniques have been proposed to enhance app protection. As an effective approach to prevent reverse engineering, obfuscation can be…
EVulHunter: Detecting Fake Transfer Vulnerabilities for EOSIO's Smart Contracts at Webassembly-level
Lijin Quan, Lei Wu, Haoyu Wang
As one of the representative Delegated Proof-of-Stake (DPoS) blockchain platforms, EOSIO's ecosystem grows rapidly in recent years. A number of vulnerabilities and corresponding at…
Characterizing Code Clones in the Ethereum Smart Contract Ecosystem
Ningyu He, Lei Wu, Haoyu Wang +2
In this paper, we present the first large-scale and systematic study to characterize the code reuse practice in the Ethereum smart contract ecosystem. We first performed a detailed…