Course 33 - Static Analysis for Reverse Engineering | Episode 3: Graphical Reverse Engineering with x64dbg

In this lesson, you’ll learn about: graphical static analysis and Control Flow Graphs (CFGs)Review AnswerWhen analyzing a Control Flow Graph (CFG) in x64dbg with the xAnalyzer plugin:🔹 What Green and Red Arrows RepresentGreen arrowsRepresent the successful condition (TRUE branch)The path taken when a comparison or condition is metRed arrowsRepresent the failed condition (FALSE branch)The path taken when the condition is not met🔹 How They Help in Reverse EngineeringAfter a comparison instruction (like CMP):The program evaluates a condition (e.g., JE, JNE, JG, etc.)The CFG visually splits into:✅ Green path → correct condition❌ Red path → incorrect condition🔹 Practical Use (Cracking / Analysis)These arrows allow you to:Quickly identify:Which branch leads to:“Access Granted”“Access Denied”Focus on:The green path to understand:What makes the input validOr manipulate:The execution flow (e.g., forcing a jump)🔹 Simple ExampleAfter a serial key check:If key is correct:→ Program follows green arrow→ Shows success messageIf key is wrong:→ Program follows red arrow→ Shows error message🎯 Key InsightCFG colors turn complex assembly into a visual decision map:Green = “This condition passed”Red = “This condition failed”👉 This makes it much easier to:Track logicIdentify validation pointsReverse engineer faster and smarterYou can listen and download our episodes for free on more than 10 different platforms:https://linktr.ee/cybercode_academy