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Barista: One Exe to Install Doppio and RistrettoOct 16, 2026The 2FA series ends with two LSA components, an unsigned DLL in lsass and a dozen steps that have to happen in the right order. Barista is a wizard that does them one reboot at a time, from a single exe with every binary embedded and hash-checked.Tools9 min · Cappuccino#windows#lsa#2fa#credential-provider Build Your Own 2FA for the Windows Logon, Part 3: Gating Network LogonsOct 11, 2026Part 2 refuses every network logon for an enrolled account, which makes the account safe and useless. Part 3 adds a gate you open once with a one-time code, so SMB, RPC and WinRM work again for a short window. In C++, with the full source.Windows35 min · French Press#windows#lsa#ntlm#smb Build Your Own 2FA for the Windows Logon, Part 2: Inside LSAOct 1, 2026The credential provider from Part 1 only sees the logon screen. Part 2 goes into LSA to close the paths it can't reach, with an authentication package and an MSV1_0 sub-authentication filter in C++.Windows32 min · French Press#windows#credential-provider#lsa#2fa Build Your Own 2FA for the Windows LogonSep 30, 2026How a Credential Provider works and how to build a working TOTP 2FA for local Windows accounts in C++. With rate limiting, replay protection and logging.Windows60 min · French Press#windows#credential-provider#2fa#totp Hack The Box: AdministratorNov 19, 2024Walkthrough for the "Administrator" Hack the Box ChallengeHack The Box10 min · Cappuccino#writeup#windows#active-directory Hack The Box: GhostJul 18, 2024Walkthrough for the "Ghost" Hack the Box ChallengeHack The Box1 min · Espresso#writeup#windows#active-directory Hack The Box: MailingJun 26, 2024Walkthrough zur "Mailing" Hack the Box ChallengeHack The Box11 min · Cappuccino#writeup#windows Hack The Box: JerryJun 20, 2024Walkthrough zur "Jerry" Hack the Box ChallengeHack The Box3 min · Espresso#writeup#windows Hack The Box: ForestMay 20, 2024Walkthrough zur "Forest" Hack the Box ChallengeHack The Box16 min · Filter#writeup#windows#active-directory