Koadic C3 COM Command & Control – JScript RAT

2017-08-08T17:51:13
ID N0WHERE:172000
Type n0where
Reporter N0where
Modified 2017-08-08T17:51:13

Description

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).

Koadic also attempts to be compatible with both Python 2 and Python 3.

Stagers

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

Implants

Implants start jobs on zombies.

Module | Description
---|---
implant/elevate/bypassuac_eventvwr | Uses enigma0x3’s eventvwr.exe exploit to bypass UAC on Windows 7, 8, and 10.
implant/elevate/bypassuac_sdclt | Uses enigma0x3’s sdclt.exe exploit to bypass UAC on Windows 10.
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/hashdump_sam | Retrieves hashed passwords from the SAM hive.
implant/gather/hashdump_dc | Domain controller hashes from the NTDS.dit file.
implant/inject/mimikatz_dynwrapx | Injects a reflective-loaded DLL to run powerkatz.dll (using Dynamic Wrapper X).
implant/inject/mimikatz_dotnet2js | Injects a reflective-loaded DLL to run powerkatz.dll (@tirannido DotNetToJS).
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/pivot/stage_wmi | Hook a zombie on another machine using WMI.
implant/pivot/exec_psexec | Run a command on another machine using psexec from sysinternals.
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/upload_file | Uploads a file from the listening server to the target zombies.

Disclaimer

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.

COM Command & Control: Koadic Download