HEADER:00400000; File : ozdc.us

HEADER:00400000; Format : personal notebook, signed (PGP)

HEADER:00400000; Author : Can Ozdemir

HEADER:00400000; Entry : _start

HEADER:00400000; Contact : ozdc@ozdc.us (PGP BB96A96A0C16FCC7)

HEADER:00400000

.rodata:00400100

o6Fz7Ad64c63.2Eu75s7300

aTagline db "reverse engineering & security notes",0

.text:00401000

.text:00401000; =============== S U B R O U T I N E ===============

.text:00401000

.text:00401000; Attributes: public, persistent

.text:00401000public_start

.text:00401000_startprocnear

.text:00401000pushrbp

.text:00401001movrbp, rsp

.text:00401004movecx, 34; post count

.text:00401009learsi, aPosts; "posts"

.text:00401010; ------------- posts (34) -------------

.text:00401010

callFirst look at an unknown file, safely ; 2026-10-16 · sub_4485E0 #triage #malware-analysis #tutorial

.text:00401015

callFrom C to x86-64: reading a compiled loop ; 2026-10-15 · sub_447380 #x86-64 #assembly #tutorial

.text:0040101A

callThe ELF header, byte by byte ; 2026-10-14 · sub_446510 #elf #linux #tutorial

.text:0040101F

callReading a hexdump ; 2026-10-13 · sub_445890 #basics #hex #tutorial

.text:00401024

callEvolution, illustrated ; 2026-07-28 · sub_442460 #science #biology #evolution #essay

.text:00401029

callNature as engineer: what nature teaches us ; 2026-06-16 · sub_43E520 #science #engineering #biology #biomimicry #essay

.text:0040102E

callBlack holes, simply ; 2026-05-26 · sub_43B290 #science #astronomy #physics #black-holes

.text:00401033

callLife's origin: what we know and what we don't ; 2026-04-20 · sub_437B40 #science #biology #origin-of-life #essay

.text:00401038

callThe revolutions of our time ; 2026-04-09 · sub_434C10 #science #history #philosophy #essay

.text:0040103D

callFive ideas that built modern science ; 2026-03-29 · sub_430F30 #science #history #physics #biology #essay

.text:00401042

callPhilosophy for people who read machine code ; 2026-03-02 · sub_42EC00 #philosophy #essay #reverse-engineering

.text:00401047

callGhidra: the first hour with a new binary ; 2026-01-24 · sub_42DC20 #ghidra #tooling #tutorial

.text:0040104C

callZeitgeist: reading the spirit of an age ; 2025-11-20 · sub_42BDF0 #philosophy #history #society #essay

.text:00401051

callHow we know the universe is expanding ; 2025-10-21 · sub_428480 #science #astronomy #cosmology

.text:00401056

callParsing binary formats with Python's struct ; 2025-10-12 · sub_4275C0 #python #file-formats #tooling #tutorial

.text:0040105B

callThe world monetary order, from gold to the dollar ; 2025-08-24 · sub_4254F0 #economics #history #money #geopolitics #essay

.text:00401060

callReading a PNG by hand ; 2025-07-05 · sub_424570 #file-formats #hex #tutorial

.text:00401065

callHow banks create money ; 2025-05-16 · sub_422290 #economics #banking #money #essay

.text:0040106A

callHow a call to puts reaches libc (PLT and GOT) ; 2025-04-19 · sub_421330 #elf #linux #dynamic-linking #tutorial

.text:0040106F

callWhat money is: a ledger of promises ; 2025-03-22 · sub_41F4F0 #economics #money #essay

.text:00401074

callStructs in disassembly ; 2025-02-08 · sub_41E800 #x86-64 #data-structures #tutorial

.text:00401079

callExoplanets: how we find other worlds ; 2025-01-05 · sub_41B320 #science #astronomy #exoplanets

.text:0040107E

callPlate tectonics: the moving ground ; 2024-12-24 · sub_417870 #science #geology #earth #history

.text:00401083

callRecognising if/else and switch in disassembly ; 2024-11-30 · sub_4169F0 #x86-64 #control-flow #tutorial

.text:00401088

callThe Moon, tides and eclipses ; 2024-11-04 · sub_412C30 #science #astronomy #moon #tides

.text:0040108D

callSpinoza on emotions and freedom ; 2024-10-14 · sub_40FD60 #philosophy #spinoza #psychology #essay

.text:00401092

callThe universe in one year: a cosmic calendar ; 2024-10-03 · sub_40CCF0 #science #cosmos #history #essay

.text:00401097

callThe stack, call and ret ; 2024-09-14 · sub_40BDF0 #x86-64 #stack #tutorial

.text:0040109C

callSpinoza: God, or Nature ; 2024-07-23 · sub_408FB0 #philosophy #spinoza #essay

.text:004010A1

callx86-64 registers and flags, the parts that matter ; 2024-06-22 · sub_4081D0 #x86-64 #basics #tutorial

.text:004010A6

callA tour of the solar system ; 2024-04-15 · sub_404EB0 #science #astronomy #solar-system

.text:004010AB

callBit tricks compilers use ; 2024-04-06 · sub_404200 #x86-64 #compilers #tutorial

.text:004010B0

callHex, binary and two's complement ; 2024-02-11 · sub_4036A0 #basics #tutorial

.text:004010B5

callWhat is existence? A short tour of ontology ; 2024-01-19 · sub_401000 #philosophy #ontology #essay

.text:004010CA

.text:004010CAxoreax, eax

.text:004010CCleave

.text:004010CDretn

.text:004010CD_startendp

.text:004010CD

.text:004010CE; end of listing