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competition-dpapi-credential-chain

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Internal downstream skill for ctf-sandbox-orchestrator. CTF-sandbox workflow for DPAPI masterkeys, vault blobs, browser credential stores, protected secrets, domain backup keys, and secret-to-acceptance replay chains. Use when the user asks to inspect DPAPI blobs or masterkeys, recover browser or vault credentials, trace DPAPI context or backup-key use, or explain how protected Windows secrets become accepted access or privilege. Use only after `$ctf-sandbox-orchestrator` has already established sandbox assumptions and routed here.

CTF-Sandbox-Orchestrator/competition-dpapi-credential-chain/SKILL.md

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Observed behavior
Network or broad shell
Last checked
Nov 9, 2026

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44,493
Repository last updated
Sep 22, 2026
License
MIT

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# Competition Dpapi Credential Chain

Use this skill only as a downstream specialization after `$ctf-sandbox-orchestrator` is already active and has established sandbox assumptions, node ownership, and evidence priorities. If that has not happened yet, return to `$ctf-sandbox-orchestrator` first.

Use this skill when the decisive Windows secret is DPAPI-protected and the hard part is proving which context unwraps it and where the plaintext is accepted.

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## Quick Start

1. Separate protected blob, masterkey, decrypting context, and final accepting service.
2. Record SID, user or machine context, masterkey path, vault or browser store, and target replay point before broad conclusions.
3. Keep DPAPI source artifact, unwrap step, plaintext secret, and acceptance edge in one chain.
4. Distinguish local user DPAPI, machine DPAPI, domain backup key use, and application-specific wrapping.
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