Mengya Zhang Xiaokuan Zhang Yinqian Zhang Zhiqiang Lin 0001 TXSPECTOR: Uncovering Attacks in Ethereum from Transactions. 2775-2792 2020 USENIX Security Symposium https://www.usenix.org/conference/usenixsecurity20/presentation/zhang-mengya conf/uss/2020 db/conf/uss/uss2020.html#ZhangZZL20