Test Android app security by operating the app and inspecting network traffic first, then analyzing APK code or observing functions during execution when needed. Verify vulnerabilities and produce a report with screenshots, traffic evidence, and code review findings.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Observing app traffic during real user flows
• Analyzing code when traffic is hidden or encrypted
• Testing API authorization by modifying and replaying requests

Analyze traffic from Android apps, browser JavaScript, and desktop clients to prepare requests for replay in Burp. Investigate signatures, encryption, and session dependencies when they block replay, and retain working request samples with supporting observations.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Capture Android app traffic during real user flows
• Investigate browser request signatures and tokens
• Analyze desktop client signing logic

Handle encoded strings and cryptographic data with tool-based conversions. Decode layered formats, calculate hashes, encrypt or decrypt with AES and RSA, and inspect JWT tokens, which carry encoded headers and data used in authentication.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Decoding strings with multiple layers of encoding
• Calculating hashes and checking likely hash formats
• Encrypting or decrypting data with a known key

Analyze CTF cryptography challenges by identifying the cipher and matching known parameters to possible attacks. It provides formulas, attack parameters, and Python snippets for RSA, AES, elliptic curves, random number generators, classical ciphers, and lattice problems.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Choose RSA approaches from the given parameters
• Investigate weaknesses in AES modes
• Analyze random number sequences for predictability

Find relevant references for CTF miscellaneous challenges, including restricted execution environments, layered encodings, hidden data in media, and game or virtual machine analysis. It also covers CTFd platform operations and Linux privilege escalation.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Investigate Python or Bash jail challenges
• Identify layered encodings and hidden media data
• Analyze games and custom virtual machines

Solve CTF web challenges using concrete test inputs, request templates, and PHP code review checklists. The reference covers type comparisons, command injection, template injection, deserialization, source extraction, and common locations for challenge flags.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Review PHP source code in a CTF challenge
• Investigate type comparisons and input filters
• Explore template injection and deserialization