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Software breakpoint A software breakpoint is a specific instruction (in x86: int 3, encoded both as 0xcc and 0xcd0x03) that tells the CPU the user (in CPU terms, this usually means a developer) would like … A debugger sets a software breakpoint by replacing a single instruction (or part of it) with a the software breakpoint interrupt, and sets it back to the original instruction when it later resumes execution …

You will then need to create your own "breakpoint" handling logic (create & delete breakpoint) by modifying code at desired addresses to trigger that exception and restore it afterwards. … For those reasons, division by zero is far less convinenet to use as a software breakpoint alternative. …

Writing an hypervisor The best way to currently do this is by creating a micro-hypervisor, exploiting technologies originally created to support faster virtualization to monitor usermode as well as k …

The best option here is probably your first suggestion - finding an exported function that calls your function, and then disassembling it in run time to figure out where the call points to. This is p …

Both hooks and debuggers are easy enough to detect if you're looking for them. Using API in order to read the debugee's memory by the debugger is no real disadvantage, in my opinion. I find debugging …

Although most debuggers implement that internally, memory breakpoints work by setting the PAGE_GUARD bit for all pages in the memory breakpoint address range, and then filtering any exceptions caught for …

There's a huge variary of windows API functions that let a program send TCP packets. Non of those (as far as I recall) contain the strings tcp or send buffer in their name. to reverse engineer networ …

You'll have to use any other mechanisms, probably a memory breakpoint, and a conditional check of what's at the top of the stack. …