Binary payloads

payloads.c

// Structured binary patterns. (non-string)
const unsigned char BINARY_PAYLOADS[][64] = {
    // 64-byte aligned NOP sled (0x90) — may trigger ROP detection or DEP.
    {0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90,
     0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90,
     0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90,
     0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90,
     0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90,
     0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90,
     0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90,
     0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90, 0x90},

    // Canonical x64 return address pattern. (0x4141414141414141)
    {0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41, 0,0,0,0,0,0,0,0,
     0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42, 0,0,0,0,0,0,0,0,
     0x43,0x43,0x43,0x43,0x43,0x43,0x43,0x43, 0,0,0,0,0,0,0,0,
     0x44,0x44,0x44,0x44,0x44,0x44,0x44,0x44, 0,0,0,0,0,0,0,0},

    // Invalid x64 instruction stream (UD2 + HLT)
    {0x0f, 0x0b, 0xf4, 0x0f, 0x0b, 0xf4, 0x0f, 0x0b,
     0xf4, 0x0f, 0x0b, 0xf4, 0x0f, 0x0b, 0xf4, 0x0f,
     0x0b, 0xf4, 0x0f, 0x0b, 0xf4, 0x0f, 0x0b, 0xf4},

    // IEEE 754 NaN / Infinity (may crash float parsers)
    {0x00,0x00,0x00,0x00,0x00,0x00,0xf8,0x7f,  // +Inf
     0x00,0x00,0x00,0x00,0x00,0x00,0xf8,0xff,  // -Inf
     0x00,0x00,0x00,0x00,0x00,0x00,0xf8,0x7f,  // NaN pattern
     0x01,0x00,0x00,0x00,0x00,0x00,0xf8,0x7f},

    // SEH record overwrite. (x64 uses different mechanism, but still useful for stack walkers)
    {0x41,0x41,0x41,0x41,0x41,0x41,0x41,0x41,  // Next
     0x42,0x42,0x42,0x42,0x42,0x42,0x42,0x42}, // Handler

    // Unaligned 64-bit values. (may trigger alignment faults on strict CPUs)
    {0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07}, // 7 bytes → unaligned read.
};
const size_t NUM_BINARY = sizeof(BINARY_PAYLOADS) / sizeof(BINARY_PAYLOADS[0]);
const size_t BINARY_SIZES[] = {
    64, 64, 24, 32, 16, 7
};