This interface provides a number of simple cryptographic calls (CryptProtectData()CryptUnProtectData()) that allow for easy encryptiondecryption of sensitive DPAPI data blobs.
Keepass Master Password How To Attack ItThis writeup does not cover any vulnerability in KeePass or a KeePass databasedeployment, but rather covers a few notes on how to attack it operationally while on engagements.
Keepass Master Password Password But ItIn theory this should help mitigate keylogging a users master password but it doesnt prevent an attacker from pilfering KeePass files. This is a great protection, but I would caution anyone who believes that this is also a silver bullet. I dont know the exact mechanics of how their secure desktop implementation works, but I assume there is a way around it if youre operating as NT AUTHORITYSYSTEM. In the corporate environments we operate in, it appears to be the most common password manager used by system administrators. We love to grab admins KeePass databases and run wild, but this is easier said than done in some situations, especially when key files (or Windows user accounts) are used in conjunction with passwords. This post will walk through a hypothetical case study in attacking a KeePass instance that reflects implementations weve encountered in the wild. The easiest way to gather this information is a simple process listing, through something like Cobalt Strike or PowerShell. Keepass Master Password Portable Version ThatBy default the binary is located in C:Program Files (x86)KeePass Password Safe for KeePass 1.X and C:Program Files (x86)KeePass Password Safe 2 for version 2.X, but theres also a portable version that can be launched without an install. Luckily we can use WMI here, querying for win32processes and extracting out the ExecutablePath. Get-WmiObject win32process Where-Object.Name -like kee Select-Object -Expand ExecutablePath. Get-ChildItem -Path C:Users -Include (kee.exe,.kdb) -Recurse -ErrorAction SilentlyContinue Select-Object -Expand FullName fl. You could also try rolling your own version to get by the AV present on the system or disabling AV entirely (which we dont really recommend). We may also just leave the keylogger going and wait for the user to unlock KeePass at the beginning of the day. While its possible for a user to set the Enter master key on secure desktop setting which claims to prevent keylogging, according to KeePass this option is turned off by default for compatibility reasons. KeePass 2.X can also be configured to use the Windows user account for authentication in combination with a password andor keyfile (more on this in the DPAPI section). Heres what the output looks like for a default KeePass 2.X database with the password of password. Some will name this file conspicuously and store in My DocumentsDesktop, but other times its not as obvious. If the admin is using their Windows User Account to derive the master password ( true under ) see the DPAPI section below. If they are even more savvy and store the key file on a USB drive not persistently mounted to the system, check out the Nabbing Keyfiles with WMI section. KeePass will mix an element of the users current Windows user account in with any specific password andor keyfile to create a composite master key. If this option is set and all you grab is a keylogged password andor keyfile, it might seem that youre still out of luck.
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