SharpHook – Tool Tath Uses Various API Hooks In Order To Give Us The Desired Credentials

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SharpHook 1 Helpscreen 719421

SharpHook is inspired by the SharpRDPThief project, It uses various API hooks in order to give us the desired credentials.

In the background it uses the EasyHook project, Once the desired process is up and running SharpHook will automatically inject its dependencies into the target process and then, It will send us the credentials through EasyHook’s IPC server.

Supported Processes

Process API Call Description Progress
mstsc CredUnPackAuthenticationBufferW This will hook into mstsc and should give you Username, Password and the remote ip DONE
runas CreateProcessWithLogonW This will hook into runas and should give you Username, Password and the domain name DONE
powershell CreateProcessWithLogonW This will hook into powershell and should give you output for commands for when the user enters a different credentials DONE
cmd RtlInitUnicodeStringEx This should hook into cmd and then would be able to filter keywords like: PsExec,password etc.. In Progress – Crashes cmd idk why
MobaXterm CharUpperBuffA This will hook into MobaXterm and should give you credentials for SSH and RDP logins In Progress – Problems with this being a 32bit process and Fody not working. As a workaround you can compile the project as x86 and it’ll work just fine
explorer (UAC Prompt) CredUnPackAuthenticationBufferW This will hook into explorer and should give you Username, Password and the Domain name from the UAC Prompt In Progress – UAC says access denied probably integrity levels problems

Demo

SharpHook 1 Helpscreen 719421 SharpHook 2 Demo 727560

Contribution

Please feel free to contribute as I’m having some issues with some processes. You can find me on Twitter or open a Pull Request.

Download SharpHook

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Original Source
Available for Amazon Prime