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Cheatsheet IDA


  • c: Tranform to code
  • d: Transform to data
  • p: Create a function
  • Alt+a: Change encoding of a string (i.e. from UTF8 to UTF16-LE)


  • n: Rename a symbol
  • y: Change type of the symbol
  • m: Assign a Named constant to a variable
  • t: Assign a Structure field to a variable
  • :: Comments
  • ;: Repeatable comments (comments also in Xrefs)


  • Ins: New struct
  • d: Add a new byte field
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  • Ins: New enumeration
  • n: Add enum member
  • CTRL+n: Edit enum member


  • CTRL+w: Save
  • Immediate value: Searches for value inside operands and data.
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  • Light blue: Code recognized by FLIRT signature.
  • Dark blue: User-writtend code.
  • Red: Compiler-generated code.

Scripting language


  • IDAPython: Python integration to IDA.


  • IDC: IDA's C-like scripting language.
  • Load script: File -> Script file...

Find XOR with different registers

#include <idc.idc>

static main() {
    auto ea, next_ea;
    auto insn, op1, op2;

    // Iterate over all segments
    Message("Searching for XOR...\n");
    ea = FirstSeg();
    while (ea != BADADDR) {
        next_ea = NextSeg(ea);

        // Iterate over all instructions in the segment
        while (ea != BADADDR && ea < next_ea) {
            insn = GetMnem(ea);

            // Check if the instruction is XOR
            if (insn == "xor") {
                op1 = GetOpnd(ea, 0);
                op2 = GetOpnd(ea, 1);

                // Check if operands are different registers
                if (op1 != op2) {
                    Message("=> %a: %s, %s\n", ea, op1, op2);

            // Move to the next instruction
            ea = NextHead(ea, next_ea);

        // Move to the next segment
        ea = next_ea;