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One post tagged with "OllyDbg"

OllyDbg is a popular debugger for Windows executable files that provides a user-friendly interface for analyzing binary code at runtime. It allows users to step through disassembled code, set breakpoints, inspect memory and registers, and debug malware and other malicious software. OllyDbg can also be used for reverse engineering purposes, such as understanding how a program works or identifying vulnerabilities, and is widely used by security researchers and software developers.

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HTB | Find The Easy Pass | Write-Up

· 11 min read

Summary:​

We navigate the Hack The Box CTF platform, preparing for a challenge by preparing challenge files and testing the executable. We then perform static analysis using Ghidra and dynamic analysis with OllyDbg to gain insight into its behavior.

Next, we run the executable with test data and track where it stores this data in memory, checking the surrounding environment to better understand the context. With this knowledge, we extract the password and verify it by running the executable again with the password as input. Finally, we submit the flag as HTB{<password>} and declare Challenge Completed.

Challenge Name: Find The Easy Pass | Difficulty: Easy | Category: Reversing