c++memorydllassemblycodecave
VirtualAlloc C++ , injected dll, asm
I want to reserve space for my codecave in application. I use VirtualAlloc function to reserve this space. I have X questions.
What parameters (sllocation type and protection) should I use to allocate memory for code-cave?
As return value I get address of my codecave. In other part of the program I want to JMP to that codecave. How to do it? I know (correct me if I'm wrong) that JMP takes as agument nuber that is offset from current location. But I want to JMP to ma codecave. How to calculate this offset.
Solution
Subtracting the address of your jump target from the address of the instruction after the jump will give you the jump offset.
- Is this declaration UB?
- return type defaults to 'int' [-Wimplicit-int]
- What is the scope of `fesetround()`?
- Which specific optimization flag causes libm functions to be treated as pure?
- How to render text in SDL2?
- Why would you use 'extern "C++"'?
- Strange Behavior Compiler Ignoring NULL Check Unless I Print Something in the if Statement
- Fast inverse square root using fixed point instead of floating point
- What is the const qualifier attached to in C: the memory area or the pointer?
- GCC options for strictest C code?
- How to do an explicit fall-through in C
- How do compilers treat CONST qualifier when the pointer points to a memory location obtained with malloc()?
- C: cmocka headers - how to unittest?
- Why in C when I print a double with a one decimal it round it to the next number
- Android C to Java SWIG unable to compile: incompatible types: byte cannot be converted to SWIGTYPE_p_uint8_t
- GNU Make in Ubuntu giving fatal error: rpc/types.h: No such file or directory
- How can I exclude non-numeric keys? CS50 Caesar Pset2
- How change every struct in an array of pointers?
- Optimized 2x2 matrix multiplication: Slow assembly versus fast SIMD
- Simple frame by frame video decoder library
- GCC no longer implements <varargs.h>
- Contents of IO buffer unknown == unsafe?
- Avoiding strcpy overflow destination warning
- Sort program not working, not sure why
- Fast & accurate atan/arctan approximation algorithm
- What's the difference between strtok_r and strtok_s in C?
- How memory address for pointer to arrays is same as an element in 2D array?
- Which is the best way to suppress "unused variable" warning
- How to use ellipsis in c's case statement?
- Fast ceiling of an integer division in C / C++