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
2.5k
3
Share
Embed
Copy iframe code
Copy JS code
Copy link
Start on current slide
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
More Decks by @tkmru
See All by @tkmru
10分で知るゲームが「チートされる」仕組み/findy202603
tkmru
0
1.9k
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
2.9k
Bring Your Own Container: When Containers Turn the Key to EDR Bypass/byoc-avtokyo2024
tkmru
2
1.9k
ipa-medit: Memory search and patch tool for IPA without Jailbreaking/ipa-medit-bh2022-europe
tkmru
0
450
Ipa-medit: Memory modification tool for iOS apps without Jailbreaking/ipa-medit-codeblue2022
tkmru
0
250
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
5.5k
Ipa-medit: Memory Search and Patch Tool for IPA Without Jailbreaking @Black Hat USA 2021 Arsenal/ipa-medit-bh2021-usa
tkmru
1
4.9k
Learn the essential way of thinking about vulnerabilities through post-exploitation on middlewares (MySQL/PostgreSQL編)/seccamp2020-b8
tkmru
3
1k
apk-medit: memory search and patch tool for debuggable APK @CODE BLUE 2020 Bluebox
tkmru
0
260
Other Decks in Programming
See All in Programming
iOS開発×AI駆動開発 〜最近使って便利だったスキルの話〜
nogu66
0
140
バグを直したら useEffect が消えた
colorful12
3
840
DynamoDBの基礎を振り返りながらベクトル検索機能を理解する
musan
3
270
MySQLとPostgreSQLって何が違うの?
akagami
PRO
0
170
デプロイ直後のレイテンシスパイクを調べたら、 Railsの仕様にたどり着いた
nhsykym
0
110
Pythonの実行はどこまで賢くなったのか? CPythonとPyPyから見る最適化のしくみ
curekoshimizu
4
2.8k
30年振りにコンパイラの定数整数除算を改善した
herumi
9
4.4k
go-spidermonkeyでAIエージェントのCode Modeを実装する
syumai
3
1.5k
Oxlintはいいぞ(続)
yug1224
1
550
XP祭りでしか伝わらないフリップネタ #xpjug
murabayashi
0
110
信頼性の目標を誰も求めてない
shubox
0
490
PyConJP2026_wat_Python × Signal Processing: How to Draw Pictures with Sound Using Spectrogram Art
wat
0
670
Featured
See All Featured
Leveraging LLMs for student feedback in introductory data science courses - posit::conf(2025)
minecr
1
370
Git: the NoSQL Database
bkeepers
PRO
432
67k
Into the Great Unknown - MozCon
thekraken
41
2.7k
Build The Right Thing And Hit Your Dates
maggiecrowley
39
3.4k
Raft: Consensus for Rubyists
vanstee
141
7.7k
The Spectacular Lies of Maps
axbom
PRO
1
980
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
49
10k
SERP Conf. Vienna - Web Accessibility: Optimizing for Inclusivity and SEO
sarafernandez
2
1.6k
Evolution of real-time – Irina Nazarova, EuRuKo, 2024
irinanazarova
9
1.5k
Building Experiences: Design Systems, User Experience, and Full Site Editing
marktimemedia
0
600
Breaking role norms: Why Content Design is so much more than writing copy - Taylor Woolridge
uxyall
1
400
Art, The Web, and Tiny UX
lynnandtonic
304
22k
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·ͨ͠