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Class 02 · KP 01 / 23

Why Reverse Engineers Must Read Assembly

  • Malware ships as compiled binaries. There is no source code.
  • The only ground truth is what the CPU actually executes: machine code.
  • Disassemblers (Ghidra, IDA) turn bytes back into assembly you can read.
  • Decompilers help, but they guess. Assembly does not lie.
  • Packers, obfuscation, and anti-analysis tricks live at the asm level.
Key Takeaway

If you can read x86-64 assembly, you can understand any Windows or Linux malware sample, regardless of the language it was written in.