Damn Vulnerable DeFi v4 Writeup Writeup by SunSec Screenshot 1. Unstoppable Challenge: Condition:

Damn Vulnerable DeFi v4 Writeup Writeup by SunSec Screenshot 1. Unstoppable 題目: 有一個代幣化的金庫，存入了100萬個DVT代幣。該金庫提供免費的閃電貸款，直到寬限期結束。為了在完全無需許可前捕捉任何錯誤，開發者決定在測試網中進行實時測試。還有一個監控合約，用來檢查閃電貸款功能的運行狀況。從餘額為10個DVT代幣開始，展示如何使金庫停止運行。必須讓它停止提供閃電貸款。 過關條件:

Grey Cat the Flag 2024 Milotruck challs Writeup GreyHats Dollar 題目: 擔心通貨膨脹嗎？介紹 GreyHats Dollar (GHD)，全球首個內建通縮機制的貨幣！由 GREY 代幣支持，GHD 將以每年 3% 的速度自動通縮。 過關條件: 挑戰者需拿到 50000 以上 GHD 知識點:

Warroom ETHCC 2023 Task 1 - Proxy capture 15 points 題目: 知識點: 合約未初始化 可更新合約 upgradeable contract 解題:

Project DarkCat - Blockchain Security Guardian The problem DarkCat solves Whenever an attack occurs, it takes some time to analyze the trace call over txid. We want to automate this process to assist security analysts in quickly identifying issues and providing mitigation to the protocol owner. Security analysts can use our platform and simply provide a transaction ID (txid). With the help of the tool, we can promptly determine whether it involves an attack related to price manipulation, public call and unsafe call, among other factors. Security analysts can ask DeFiHackLabs AI Assistant, which has a vast knowledge base, to find out about any vulnerability descriptions and check if a similar incident has occurred before. DarkCat will play the role of a vigilant guardian by automatically checking for security bugs in newly deployed contracts, generating specific proof of concept (POC), and root cause analysis reports, effectively aiding security analysts in incident analysis and saving a significant amount of time.