Code Monkey home page Code Monkey logo

scarecrow-cobaltstrike's Introduction



Cobalt Strike โ‡Œ ScareCrow
CNA Script

https://adamsvoboda.net/evading-edr-with-scarecrow/

๐Ÿ’ฃ ScareCrow Options

-I string
    Path to the raw 64-bit shellcode.
-Loader string
    Sets the type of process that will sideload the malicious payload:
    [*] binary - Generates a binary based payload. (This type does not benefit from any sideloading)
    [*] control - Loads a hidden control applet - the process name would be rundll32 if -O is specified. A JScript loader will be generated.
    [*] dll - Generates just a DLL file. Can be executed with commands such as rundll32 or regsvr32 with DllRegisterServer, DllGetClassObject as export functions.
    [*] excel - Loads into a hidden Excel process using a JScript loader.
    [*] msiexec - Loads into MSIexec process using a JScript loader.
    [*] wscript - Loads into WScript process using a JScript loader.
-noetw
    Enables ETW patching to prevent ETW events from being generated by the process. ETW utilizes built-in Syscalls to generate this telemetry. Since ETW is a native feature built into Windows, security products do not need to "hook" the ETW syscalls to gain the information. As a result, to prevent ETW, ScareCrow patches numerous ETW syscalls, flushing out the registers and returning the execution flow to the next instruction. 
-sandbox
    Enables sandbox evasion using IsDomainedJoined calls.
-injection string
    Enables Process Injection Mode and specifies the path to the process to create/inject into (use \ for the path).

๐Ÿ“ฅ Clone the Project

git clone https://github.com/GeorgePatsias/ScareCrow-CobaltStrike.git

๐Ÿญ Install ScareCrow

Setup ScareCrow https://github.com/optiv/ScareCrow just by running the install.sh script.

chmod +x install.sh
./install.sh

๐Ÿ”ง Setup CNA Script Configurations

Edit the ScareCrow.cna and replace the variables below accordingly. NOTE! Do not add the final / at the end of the paths!

#Path to the ScareCrow-CobaltStrike repository you just cloned.
$script_path = "/home/user/ScareCrow-CobaltStrike";

#Path to the compiled ScareCrow Go executable of the installation.
$scarecrow_executable = "/home/user/ScareCrow-CobaltStrike/ScareCrow/ScareCrow";

#Path to the CobaltStrike directory.
$cs_directory = "/home/user/cobaltstrike";

#Path to the python3 binary.
$python3 = "/usr/bin/python3";

๐Ÿ’€ Add the CNA script to Cobalt Strike

Cobalt Strike > Script Manager > Load > Select ScareCrow.cna

You will see the new menu item called ScareCrow on the top menu of Cobalt Strike.

References

https://github.com/optiv/ScareCrow

Side note

  • Run DLLs as following and slightly change the name of the exported DLL
    rundll32 example.dll,DllRegisterServer
    rundll32 example.dll,DllGetClassObject
  • Process Injection field must be defined with a single \ e.g C:\Windows\System32\notepad.exe

scarecrow-cobaltstrike's People

Contributors

georgepatsias avatar

Recommend Projects

  • React photo React

    A declarative, efficient, and flexible JavaScript library for building user interfaces.

  • Vue.js photo Vue.js

    ๐Ÿ–– Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.

  • Typescript photo Typescript

    TypeScript is a superset of JavaScript that compiles to clean JavaScript output.

  • TensorFlow photo TensorFlow

    An Open Source Machine Learning Framework for Everyone

  • Django photo Django

    The Web framework for perfectionists with deadlines.

  • D3 photo D3

    Bring data to life with SVG, Canvas and HTML. ๐Ÿ“Š๐Ÿ“ˆ๐ŸŽ‰

Recommend Topics

  • javascript

    JavaScript (JS) is a lightweight interpreted programming language with first-class functions.

  • web

    Some thing interesting about web. New door for the world.

  • server

    A server is a program made to process requests and deliver data to clients.

  • Machine learning

    Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.

  • Game

    Some thing interesting about game, make everyone happy.

Recommend Org

  • Facebook photo Facebook

    We are working to build community through open source technology. NB: members must have two-factor auth.

  • Microsoft photo Microsoft

    Open source projects and samples from Microsoft.

  • Google photo Google

    Google โค๏ธ Open Source for everyone.

  • D3 photo D3

    Data-Driven Documents codes.