Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
自作バイナリエディタを用いたバイナリ解析
Search
@tkmru
March 05, 2016
Programming
3
2.4k
自作バイナリエディタを用いたバイナリ解析
セキュリティ・キャンプ・フォーラム 2016/03/04
@tkmru
March 05, 2016
Tweet
Share
More Decks by @tkmru
See All by @tkmru
リバースエンジニアリング新時代へ! GhidraとClaude DesktopをMCPで繋ぐ/findy202507
tkmru
8
2.2k
Bring Your Own Container: When Containers Turn the Key to EDR Bypass/byoc-avtokyo2024
tkmru
2
1.7k
ipa-medit: Memory search and patch tool for IPA without Jailbreaking/ipa-medit-bh2022-europe
tkmru
0
370
Ipa-medit: Memory modification tool for iOS apps without Jailbreaking/ipa-medit-codeblue2022
tkmru
0
200
趣味と実益のための著名なOSSライブラリ起因の脆弱性の探求/seccamp2021-b5
tkmru
0
5.4k
Ipa-medit: Memory Search and Patch Tool for IPA Without Jailbreaking @Black Hat USA 2021 Arsenal/ipa-medit-bh2021-usa
tkmru
1
4.7k
Learn the essential way of thinking about vulnerabilities through post-exploitation on middlewares (MySQL/PostgreSQL編)/seccamp2020-b8
tkmru
3
950
apk-medit: memory search and patch tool for debuggable APK @CODE BLUE 2020 Bluebox
tkmru
0
230
apk-medit: memory search and patch tool for debuggable APK @Black Hat USA 2020 Arsenal/apk-medit-bh2020-usa
tkmru
0
4.3k
Other Decks in Programming
See All in Programming
HTTPプロトコル正しく理解していますか? 〜かわいい猫と共に学ぼう。ฅ^•ω•^ฅ ニャ〜
hekuchan
2
590
Combinatorial Interview Problems with Backtracking Solutions - From Imperative Procedural Programming to Declarative Functional Programming - Part 2
philipschwarz
PRO
0
130
クラウドに依存しないS3を使った開発術
simesaba80
0
210
Vibe codingでおすすめの言語と開発手法
uyuki234
0
160
ZJIT: The Ruby 4 JIT Compiler / Ruby Release 30th Anniversary Party
k0kubun
1
310
Claude Codeの「Compacting Conversation」を体感50%減! CLAUDE.md + 8 Skills で挑むコンテキスト管理術
kmurahama
1
700
CSC307 Lecture 01
javiergs
PRO
0
650
Canon EOS R50 V と R5 Mark II 購入でみえてきた最近のデジイチ VR180 事情、そして VR180 静止画に活路を見出すまで
karad
0
140
The Art of Re-Architecture - Droidcon India 2025
siddroid
0
160
例外処理とどう使い分ける?Result型を使ったエラー設計 #burikaigi
kajitack
9
2.4k
AIの誤りが許されない業務システムにおいて“信頼されるAI” を目指す / building-trusted-ai-systems
yuya4
7
4.2k
AI時代を生き抜く 新卒エンジニアの生きる道
coconala_engineer
1
500
Featured
See All Featured
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
32
1.9k
Measuring & Analyzing Core Web Vitals
bluesmoon
9
720
HU Berlin: Industrial-Strength Natural Language Processing with spaCy and Prodigy
inesmontani
PRO
0
120
Kristin Tynski - Automating Marketing Tasks With AI
techseoconnect
PRO
0
110
Ruling the World: When Life Gets Gamed
codingconduct
0
120
Amusing Abliteration
ianozsvald
0
81
The MySQL Ecosystem @ GitHub 2015
samlambert
251
13k
The agentic SEO stack - context over prompts
schlessera
0
580
Done Done
chrislema
186
16k
Navigating Team Friction
lara
191
16k
Technical Leadership for Architectural Decision Making
baasie
0
200
SEO Brein meetup: CTRL+C is not how to scale international SEO
lindahogenes
0
2.3k
Transcript
ࣗ࡞όΠφϦΤσΟλΛ ༻͍ͨόΠφϦղੳ ˏtkmru ͚ͨ·Δ 2016-03-04 Fri Security Camp Forum
୭ʁ • ໊લ: ͚ͨ·Δ (@tkmru) • ॴଐ: େֶ ใཧֶ෦ •
CTFνʔϜ: TomoriNao
༑རಸॹ(SECCON 2015 Intercollege)
None
ຊ༑རಸॹͰͳ͘ ʮࣗ࡞όΠφϦΤσΟλΛ ༻͍ͨόΠφϦղੳʯ
όΠφϦΤσΟλͱ • ͲΜͳϑΝΠϧͰ16ਐͰදࣔ͢Δ • ͍͋͠ϑΝΠϧΛ࠷ॳʹͿͪࠐΉιϑτ
BZ http://www.forest.impress.co.jp/library/img/review/10014/html/bz1.jpg.html
Stirling http://1.bp.blogspot.com/-O5txkaVlhRg/US3i8jFWvjI/AAAAAAAAdTA/uaDiY_RHDMc/s1600/02.png
grep • όΠφϦΤσΟλ্ͰΑ͘ߦΘΕΔղੳٕ๏ • ࢹͰॏཁͦ͏ͳσʔλΛݟ͚ͭΔߦҝ • Ή͔͍ͣ͠
ʮҰൠతʹgrepόΠφϦΤ σΟλʹࡌ͞Ε͍ͯΔϏοτϚο ϓϏϡʔΛۦ͠ɺ ͑ΒΕͨ ؟ྗɺݚ͗·͞Εͨੜͷצ ʹΑͬͯൃش͞ΕΔೳྗͰ͋Γɺ ࿅ͷ߹͍ʹΑͬͯେ͖͘ݸਓ ͕ࠩੜ͡ΔೳྗͰ͋Δɻʯ https://gist.github.com/yoggy/4116843
ϓϩʹ͔͠Ͱ͖ͳ͍
طଘͷόΠφϦΤσΟλͷෆຬ • mac͚ʹσϑΝΫτελϯμʔυͱ͍͑ Δͷ͕ͳ͍ • ϓϩͰͳ͍ਓ͕grep͢Δͱݟམͱ͕͠ൃ ੜ͢Δ → ΫϩεϓϥοτϑΥʔϜͰղੳΛࣗಈԽͯ͠ ͘ΕΔόΠφϦΤσΟλ͕΄͍͠
ͦ͜Ͱࣗ࡞όΠφϦΤσΟλ
biwx(ͼ͎ͬ͘͢)
ࡐྉ • Python • wxPython - C++ͷGUIϥΠϒϥϦ ʮwxWidgetsʯͷϥούʔ binary editor
+ wxPython = biwx
ಛ • ΫϩεϓϥοτϑΥʔϜ • Φʔϓϯιʔε • ϑΝΠϧͷγάωΠνϟΛ৭͚ • ৄࡉใΛදࣔ(γάωΠνϟͷॴɺPDFͷύʔε) •
ࣗಈղੳػೳ
ࣗಈղੳػೳ • Έࠐ·ΕͨϑΝΠϧͷΓग़͠ • όΠφϦͷ୯७ͳΓग़͠ • PDFͷࣗಈύʔε
σϞ1 SECCON CTF 2015 Steganography 1 MrFusion.gpjb
MrFusion.gpjb • Α͔͘Βͳ͍ϑΝΠϧ͕༩͑ΒΕΔ • ͳ͔ʹෳͷը૾ϑΝΠϧ͕Ӆ͞Ε͍ͯΔ • औΓग़ͯ͠ॱ൪ʹಡΊ͕͔͑Δ
flag SECCON{OCT 21 2015 0728}
σϞ2 malicious PDFͷղੳ
malicious PDFͷղੳ • PDFʹJavaScriptίʔυΛຒΊࠐΊΔ • Adobe ReaderͰ JavaScript ࣮ߦݖݶ͕༗ޮ ʹͳ͍ͬͯΕ࣮ߦ͞ΕΔ
ࠓޙͷల • ࣗಈղੳػೳͷ֦ॆ • γΣϧίʔυͷղੳ • ղੳऀ͕Ѫ༻͢Δπʔϧʹҭ͍͖͍ͯͯͨ
͝ਗ਼ௌ͋Γ͕ͱ͏͍͟͝·ͨ͠