Method 2: observe offsets used in every reference to the structure / function and compure the max size of data that is referenced
Method 2: observe offsets used in every reference to the structure / function and compute the max size of data that is referenced What are two methods of determining the size of a data structure ? method 1: find location in which structure / functions dynamically allocate memory w/ terms like malloc / new Step 3: Type associated w/ each field Pertaining to Data structure analysis what are 3 important steps in determining the layout of data structures in compiled code? method 1: find locations in which structures / functions dynamically allocate memory w/ terms like malloc / new Step 2: How the structure is subdivided into fields What's the purpose of identifying as many libraries as possible and applying there signatures ? Step 1: Size of the data structure Strings -a | egrep -i "gcc|libc" Using the file and string command how would you identify OS compiled on, Compiler and You greatly reduce the amount of code you need to spend time analyzing and get to focus more attention on application-specific code. Strings What tools hep you to determine Operating system, compiler & libc version what was used ? Hint: These tools work on unix, linux & mac file to id type of binary What 3 steps are needed to detect lib file What's the 3 steps ? We have a library file entitled libc.a. Step 3: Copy to sig directory under main IDA Pro program directory Using Flair to detect known elf libraries is a three step process. Step 2: Create signature file using the sigmake tool Step 1: Identity known patterns using pelf for elf binaries What tool is installed using FLIRT Technology ? libc.a is a statically linked library file This way your not wasting your time reverse engineering library code. pertaining to IDA Pro, What is FLIRT stand for, what does it do? Flair is a great tool for identifying widely used libraries. Matches code sequences against many signatures for widely used libraries.
Why dont you want to analyze library code, by mistake or on purpose ? Locating main via asm When reverse engineering C / C++ code what is considered, "a small victory" ? Fast Last thing you want to do is spend your time reversing library code that is generally accepted as fairly secure.
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