###### tags: `DarkCTF` `Rev` # HelloWorld - revese三個首要步驟 - 執行 - ltrace - strings - ![](https://i.imgur.com/qGOEI8X.png) - 沒看到可用的資訊 - ![](https://i.imgur.com/pK4QMFw.png) - 看到裡面有兩個check，直接gdb - `disassemble check` - ![](https://i.imgur.com/RhKX6uR.png) - 設好斷點c執行 - ![](https://i.imgur.com/3j7mOHF.png) - ![](https://i.imgur.com/wNs3EqY.png) - `flag:darkCTF{4rgum3nts_are_v3ry_1mp0rt4nt!!!}`