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Koadic C3 COM Command & Control - JScript RAT

Project README



Koadic, or COM Command & Control, is a Windows post-exploitation rootkit similar to other penetration testing tools such as Meterpreter and Powershell Empire. The major difference is that Koadic does most of its operations using Windows Script Host (a.k.a. JScript/VBScript), with compatibility in the core to support a default installation of Windows 2000 with no service packs (and potentially even versions of NT4) all the way through Windows 10.

It is possible to serve payloads completely in memory from stage 0 to beyond, as well as use cryptographically secure communications over SSL and TLS (depending on what the victim OS has enabled).

Recent versions Koadic are developed on Python 3, it is not a priority to have Python 2 support (End of Life).


git clone https://github.com/zerosum0x0/koadic.git
cd koadic
pip3 install -r requirements.txt


Koadic Demo

  1. Hooks a zombie
  2. Elevates integrity (UAC Bypass)
  3. Dumps SAM/SECURITY hive for passwords
  4. Scans local network for open SMB
  5. Pivots to another machine


Stagers hook target zombies and allow you to use implants.

Module Description
stager/js/mshta serves payloads in memory using MSHTA.exe HTML Applications
stager/js/regsvr serves payloads in memory using regsvr32.exe COM+ scriptlets
stager/js/rundll32_js serves payloads in memory using rundll32.exe
stager/js/disk serves payloads using files on disk
stager/js/wmic serves payloads in memory using WMIC
stager/js/bitsadmin transfers a .wsf payload containing JScript over a Bitsadmin job and executes it


Implants start jobs on zombies.

Module Description
implant/elevate/bypassuac_compdefaults Bypass UAC via registry hijack for ComputerDefaults.exe.
implant/elevate/bypassuac_compmgmtlauncher Bypass UAC via registry hijack for CompMgmtLauncher.exe.
implant/elevate/bypassuac_eventvwr Uses enigma0x3's eventvwr.exe exploit to bypass UAC on Windows 7, 8, and 10.
implant/elevate/bypassuac_fodhelper Bypass UAC via registry hijack for fodhelper.exe.
implant/elevate/bypassuac_sdclt Uses enigma0x3's sdclt.exe exploit to bypass UAC on Windows 10.
implant/elevate/bypassuac_slui Bypass UAC via registry hijack for slui.exe.
implant/elevate/system_createservice Elevate from administrative session to SYSTEM via SC.exe.
implant/fun/zombie Maxes volume and opens The Cranberries YouTube in a hidden window.
implant/fun/voice Plays a message over text-to-speech.
implant/gather/clipboard Retrieves the current content of the user clipboard.
implant/gather/comsvcs_lsass Utilizes comsvcs.dll to create a MiniDump of LSASS, parses with pypykatz.
implant/gather/enum_domain_info Retrieve information about the Windows domain.
implant/gather/hashdump_dc Domain controller hashes from the NTDS.dit file.
implant/gather/hashdump_sam Retrieves hashed passwords from the SAM hive.
implant/gather/loot_finder Finds loot on the target box.
implant/gather/user_hunter Locate users logged on to domain computers (using Dynamic Wrapper X).
implant/inject/mimikatz_dotnet2js Injects a reflective-loaded DLL to run powerkatz.dll (@tirannido DotNetToJS).
implant/inject/mimikatz_dynwrapx Injects a reflective-loaded DLL to run powerkatz.dll (using Dynamic Wrapper X).
implant/inject/mimikatz_tashlib Executes arbitrary shellcode using the TashLib COM object. (Work in Progress!)
implant/inject/shellcode_dotnet2js Executes arbitrary shellcode using the DotNet2JS technique. Inject shellcode into a host process via createremotethread as a new thread (thanks psmitty7373!).
implant/inject/shellcode_dynwrapx Executes arbitrary shellcode using the Dynamic Wrapper X COM object.
implant/inject/shellcode_excel Runs arbitrary shellcode payload (if Excel is installed).
implant/manage/enable_rdesktop Enables remote desktop on the target.
implant/manage/exec_cmd Run an arbitrary command on the target, and optionally receive the output.
implant/persist/add_user Adds a either a local or domain user.
implant/persist/registry Adds a Koadic stager payload in the registry.
implant/persist/schtasks Establishes persistence via a scheduled task.
implant/persist/wmi Creates persistence using a WMI subscription.
implant/phishing/password_box Prompt a user to enter their password.
implant/pivot/exec_psexec Run a command on another machine using psexec from sysinternals.
implant/pivot/exec_wmi Executes a command on another system.
implant/pivot/stage_wmi Hook a zombie on another machine using WMI.
implant/scan/tcp Uses HTTP to scan open TCP ports on the target zombie LAN.
implant/utils/download_file Downloads a file from the target zombie.
implant/utils/multi_module Run a number of implants in succession.
implant/utils/upload_file Uploads a file from the listening server to the target zombies.

Future Improvements (a.k.a. Koadic 2.0)

  • Rewrite and redesign the server stack to be cleaner.
  • Actual VBScript support.


Code samples are provided for educational purposes. Adequate defenses can only be built by researching attack techniques available to malicious actors. Using this code against target systems without prior permission is illegal in most jurisdictions. The authors are not liable for any damages from misuse of this information or code.




Special thanks to research done by the following individuals:

Open Source Agenda is not affiliated with "Koadic" Project. README Source: zerosum0x0/koadic
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