Zhao

Investigate prompt injection in sandboxed security challenges by tracing how untrusted text changes an agent’s decisions or tool calls. Build a minimal reproduction and preserve evidence showing where external content crosses into trusted instructions or actions.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Trace instructions hidden in retrieved documents
• Investigate agent behavior changed by stored memory
• Reproduce altered tool arguments or secret exposure

Trace forced authentication and relay chains in a CTF sandbox. Identify what triggers authentication, which service accepts the forwarded identity, and what privilege or artifact results, while distinguishing captured authentication from a successfully accepted relay.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Identify what triggers forced authentication
• Find which service accepts relayed authentication
• Connect relay acceptance to resulting privileges

Analyze a custom protocol in a CTF sandbox and reproduce an accepted exchange. Recover message boundaries, checksums, and session state, then build a small replay program that preserves the required message order.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Recover message boundaries in an unknown protocol
• Reconstruct handshake steps and session state
• Build a replay program for a captured exchange

Analyze encrypted ZIP challenges in a CTF sandbox and use bkcrack to recover legacy ZipCrypto keys from known file contents. Create a decrypted archive, validate extraction, and preserve the commands and evidence needed to reproduce the result.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Identify the encryption used by a ZIP archive
• Recover ZipCrypto keys from known file contents
• Validate and extract a decrypted archive

Inspect firmware in a CTF sandbox, map its partitions, and trace startup and update steps. Connect extracted files, credentials, and configuration to device behavior, preserving evidence for a minimal reproducible path.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Map firmware partitions and extracted filesystems
• Trace startup and update verification steps
• Identify where embedded credentials are used

Analyze packet captures in a CTF sandbox by rebuilding communication sessions and decoding message contents. Recover transferred files and connect packet order, timing, and reconstructed streams to observed host or malware behavior.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Rebuild TCP or UDP communication sessions
• Decode HTTP, DNS, or custom protocol messages
• Recover files transferred over the network

Investigate web applications in a CTF sandbox by tracing real browser requests, stored state, API calls, and background jobs. Compare successful and failing flows to explain authentication, routing, and differences between interface and server behavior.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Trace authentication and session flows
• Compare browser state with server behavior
• Follow uploads and background jobs

Trace movement between Windows hosts in a CTF sandbox using credentials and Kerberos tickets, which carry authentication information. Connect recovered artifacts to the service that accepted them and document the resulting access or privileges.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Trace movement between Windows hosts
• Identify services that accept recovered credentials
• Connect Kerberos tickets to resulting access

Route authorized reverse engineering, security analysis, CTF challenge, and defensive testing requests to specialist skills in a local repository. This Codex adapter selects the relevant workflow and checks the task scope before target actions begin.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Selecting a specialist skill for reverse engineering
• Starting security analysis with a defined scope
• Routing CTF challenge tasks to a suitable workflow

Trace server-side request forgery, where a server fetches a supplied URL, through internal services and metadata endpoints in a CTF sandbox. Document credential scope and distinguish successful token extraction from access actually accepted by another service.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Tracing server-side requests to internal services
• Checking metadata access and token scope
• Distinguishing token extraction from accepted access

Reproduce timing and ordering bugs in a CTF sandbox using controlled concurrent requests. Compare normal and racing runs, trace reads and writes, and preserve a minimal sequence that demonstrates duplicate actions or inconsistent state.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Reproduce bugs triggered by simultaneous requests
• Investigate duplicate actions and ineffective duplicate prevention
• Trace stale reads and gaps in locking

Analyze WebSocket and SSE realtime connections in CTF sandboxes. Trace connection setup, authentication, subscriptions, and message sequences to explain changes in displayed or stored state and identify the smallest sequence that reproduces them.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Inspecting connection setup and authentication data
• Decoding realtime messages and subscription flow
• Tracing reconnect behavior and message order

Trace uploaded files through extraction, conversion, parsing, and reconstruction of saved objects in a CTF sandbox, an isolated competition environment. Preserve original and derived files, distinguish visible validation from backend behavior, and document the smallest reproducible processing chain.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Trace an uploaded file to its backend effect
• Investigate archive extraction and preview generation
• Compare visible validation with backend file handling

Analyze Windows identity and host evidence in CTF sandboxes. Connect authentication tickets, credentials, mailbox rules, and host activity to explain which services accept access and how movement between hosts occurs.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Tracing authentication tickets and tokens
• Investigating mailbox rules alongside identity events
• Building a timeline of Windows host evidence

Compare how proxies and backend servers interpret HTTP requests in a CTF sandbox. Use paired requests and logs to pinpoint differences in paths, headers, or message boundaries, then document a minimal reproduction of unintended routing.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Compare HTTP interpretation across proxies and backend servers
• Investigate path normalization and decoding differences
• Trace routing changes caused by ambiguous headers

Trace software artifacts from source and dependencies through builds, publishing, and runtime use in CTF sandboxes. Compare intended versions with shipped files to identify the earliest divergence and document the evidence linking each stage.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Comparing declared, resolved, and shipped dependency versions
• Tracing package or build tampering through CI/CD
• Identifying the artifact actually used at runtime

Trace SSH keys, tokens, and other credentials in Linux CTF environments. Connect each recovered artifact to the service that accepts it, then document the resulting privileges or movement to another host.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Trace where recovered SSH keys and tokens are accepted
• Document privilege gains through sockets or sudo
• Explain movement between Linux challenge hosts

Trace queued jobs from submission to their eventual effects in a CTF sandbox. Compare request-time and worker-time settings, follow retries and failed-message handling, and document the smallest sequence that explains a worker-specific result.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Trace a queued payload to its eventual downstream effect
• Compare request-time settings with worker runtime state
• Investigate retries and dead-letter queue handling

Examine container isolation in a CTF sandbox, a controlled security challenge environment. The skill checks kernel and runtime conditions, verifies whether an exploit crosses into host context, and preserves a minimal reproducible chain with evidence.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Review container isolation settings in a CTF environment
• Check kernel exploit prerequisites
• Verify whether a trigger crosses the container boundary

Investigate hidden data in CTF images, audio, video, and documents. Examine file structure and candidate hiding channels, then extract and reconstruct the payload while preserving intermediate files and reproducible steps.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Inspecting metadata and data appended to media files
• Finding hidden data in image transparency or color channels
• Examining audio spectrograms and video frame differences

Organize CTF investigations by mapping the supplied targets, tracing one minimal path, and selecting the relevant specialist workflow. Findings are grounded in observed behavior and reproducible evidence, with a clean baseline used for verification.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Choosing an analysis path for a CTF challenge
• Tracing a minimal path through challenge infrastructure
• Packaging reproducible evidence for a solution

Solve sandboxed CTF security challenges by reconstructing encoding and encryption steps, extracting data hidden in media, and tracing mobile app signing or storage behavior. Preserve exact parameters and evidence to reproduce decoded content or signed requests.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Reconstructing encoding and encryption chains in CTF challenges
• Extracting data hidden in images and other media
• Tracing APK or IPA request-signing logic

Reconstruct frontend behavior from served JavaScript, build manifests, and source maps, which link built code to source. Trace loaded modules, recover route and API references, and identify the smallest asset sequence that explains observed behavior.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Reconstructing the structure of served JavaScript
• Recovering route and API references from built assets
• Tracing chunk loading and obscured loader code

Build an evidence-backed incident timeline in a CTF sandbox by correlating logs, network captures, and other artifacts. Trace attacker actions across sources, distinguish confirmed events from inferred gaps, and preserve the sequence that supports the conclusion.

한국어 요약은 준비 중입니다. 영어 요약을 표시하고 있습니다.

• Combine logs and network captures into an incident timeline
• Trace attacker actions from initial access to persistence
• Separate confirmed event order from inferred gaps