Trace how JWT, JWS, and JWE tokens become accepted identities or privileges in a CTF sandbox. Examine headers, key selection, and claims, the token's attributes, then preserve a minimal reproducible path demonstrating validation confusion.
- Inspect token headers and key selection in a CTF sandbox
- Trace how token claims become application permissions
- Build a minimal reproduction of token acceptance confusion
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
Examine Windows credential material in a CTF sandbox, including LSASS memory and Kerberos tickets. Distinguish stored secrets from credentials that actually work, and document the evidence linking their source to successful authentication or resulting privileges.
- Examining LSASS secrets and Windows logon sessions
- Checking whether recovered Kerberos tickets are usable
- Tracing DPAPI and SSP credential material
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
Trace how requests travel through a CTF sandbox, from hostnames and proxy rules to containers and processes. Compare headers and live traffic to identify which service handles a request and what changes its destination.
- Identify which container handles a request
- Check how Host and forwarded headers affect routing
- Trace path rewrites and WebSocket routing
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Identify what triggers forced authentication
- Find which service accepts relayed authentication
- Connect relay acceptance to resulting privileges
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
Investigate Windows secrets protected by DPAPI, a system for encrypting sensitive data, in a CTF sandbox. Trace the required keys and account context through decryption, then verify which service accepts the recovered secret.
- Inspect DPAPI-protected data and masterkeys
- Trace credentials stored by browsers or Windows Vault
- Identify the account or machine context needed for decryption
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
Trace how access to cloud metadata leads to issued credentials and accepted privileges in a CTF sandbox. Organize endpoints, identity details, and API evidence into a minimal, reproducible path showing where trust is granted.
- Investigating access to cloud metadata services
- Tracing instance or workload credentials
- Verifying privileges accepted through metadata credentials
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Rebuild TCP or UDP communication sessions
- Decode HTTP, DNS, or custom protocol messages
- Recover files transferred over the network
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Comparing declared, resolved, and shipped dependency versions
- Tracing package or build tampering through CI/CD
- Identifying the artifact actually used at runtime
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Reconstructing encoding and encryption chains in CTF challenges
- Extracting data hidden in images and other media
- Tracing APK or IPA request-signing logic
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
Investigate Kubernetes permissions and cluster behavior in CTF sandboxes. Trace role-based access control, service accounts, and automated controllers to explain workload changes, secret exposure, and differences between configuration files and live objects.
- Checking service account API permissions
- Tracing secret exposure through workload changes
- Comparing YAML manifests with live cluster objects
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Reproduce bugs triggered by simultaneous requests
- Investigate duplicate actions and ineffective duplicate prevention
- Trace stale reads and gaps in locking
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Trace where recovered SSH keys and tokens are accepted
- Document privilege gains through sockets or sudo
- Explain movement between Linux challenge hosts
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Inspecting metadata and data appended to media files
- Finding hidden data in image transparency or color channels
- Examining audio spectrograms and video frame differences
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Reconstructing the structure of served JavaScript
- Recovering route and API references from built assets
- Tracing chunk loading and obscured loader code
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Identify the encryption used by a ZIP archive
- Recover ZipCrypto keys from known file contents
- Validate and extract a decrypted archive
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Trace a queued payload to its eventual downstream effect
- Compare request-time settings with worker runtime state
- Investigate retries and dead-letter queue handling
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
Investigate Kerberos delegation, which lets services act on another identity, in a CTF sandbox. Trace delegation settings, issued tickets, and service acceptance to document a reproducible trust path and the privileges it actually grants.
- Identifying constrained, unconstrained, or resource-based delegation
- Tracing S4U steps and issued authentication tickets
- Verifying ticket acceptance and resulting privileges
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
Trace OAuth and OIDC sign-in flows in a CTF sandbox, from redirects through token exchange to application acceptance. Show where tokens become a recognized identity or permission, and preserve the smallest reproducible flow.
- Trace sign-in redirects and callback parameters
- Inspect state, nonce, and PKCE validation
- Check how tokens become application identity or permissions
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Combine logs and network captures into an incident timeline
- Trace attacker actions from initial access to persistence
- Separate confirmed event order from inferred gaps
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Review container isolation settings in a CTF environment
- Check kernel exploit prerequisites
- Verify whether a trigger crosses the container boundary
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Trace instructions hidden in retrieved documents
- Investigate agent behavior changed by stored memory
- Reproduce altered tool arguments or secret exposure
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Tracing authentication tickets and tokens
- Investigating mailbox rules alongside identity events
- Building a timeline of Windows host evidence
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
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.
- Map firmware partitions and extracted filesystems
- Trace startup and update verification steps
- Identify where embedded credentials are used
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026
Analyze running containers in a CTF sandbox by comparing declared configuration with live processes, mounts, and routes. Trace how secrets and helper containers affect behavior, then document the earliest mismatch and a minimal evidence chain.
- Comparing container manifests with live runtime behavior
- Identifying which process consumes a mounted secret
- Tracing changes made by sidecars or init containers
zhaoxuya520/reverse-skill☆ 42.8KUpdated Sep 22, 2026