An interactive command prompt for red teaming and pentesting. Automatically pushes commands through SOCKS4/5 proxies via proxychains. Optional Cobalt Strike integration pulls beacon SOCKS4/5 proxies from the team server. Automatically logs activities to a local CSV file and a Cobalt Strike team server (if configured).
Note that because RedShell uses proxychains under the hood, only TCP traffic is proxied.
RedShell runs on Python > 3.8.
Install dependencies:
pip3 install -r requirements.txt Install proxychains-ng (https://github.com/rofl0r/proxychains-ng):
apt install proxychains4 RedShell is no longer dependent on Cobalt Strike. However, if you're using Cobalt Strike integration, the CS client must be installed on the same host as RedShell. Also make the agscript wrapper executable:
chmod +x agscript.sh Start RedShell:
$python3 redshell.py ____ _______ __ ____ / __ \___ ____/ / ___// /_ ___ / / / / /_/ / _ \/ __ /\__ \/ __ \/ _ \/ / / / _, _/ __/ /_/ /___/ / / / / __/ / / /_/ |_|\___/\__,_//____/_/ /_/\___/_/_/ Logging to: /home/user/.redshell/redshell_2022_08_22_13_00_13.csv redshell > Display help:
redshell > help Documented commands (use 'help -v' for verbose/'help <topic>' for details): =========================================================================== beacon_exec cs_connect cs_status help pwd socks cd cs_disconnect cs_use_pivot history quit config cs_load_config exec log set context cs_pivots exit proxy_exec shell Set options:
redshell> set option VALUE RedShell automatically logs activities via the beacon_exec, proxy_exec, exec, or log commands. Logging is automatically initialized on startup, and log files are written to: ~/.redshell.
To log to Cobalt Strike, connect to a team server, select a pivot, and use the beacon_exec command.
RedShell uses proxychains-ng and a custom proxychains configuration file. Configuration file modifications and command proxying are handled on-the-fly.
To proxy through a Cobalt Strike, connect to a team server, select a pivot, and use the beacon_exec command. Refer to the Cobalt Strike section for details.
Custom socks version 4 or 5 proxies can be set with the socks command.
redshell > socks -h usage: socks [-h] [-u SOCKS5_USER] [-p SOCKS5_PASS] {socks4,socks5} ip_address socks_port Use a custom socks4/5 server positional arguments: {socks4,socks5} ip_address socks_port options: -h, --help show this help message and exit -u SOCKS5_USER -p SOCKS5_PASS RedShell automatically verifies connections and authentication (where applicable) to SOCKS proxies upon selection (either using the socks or cs_use_pivot commands). This can be disabled with the following command: set check_socks false
RedShell's context is a key aspect of activity logging. Context allows you to set the perspective (in activity logs) of the source host executing activities in a target network. The following context attributes can included in activity logs: IP Address, DNS Name, NetBIOS Name, User Name, and Process ID. Only IP Address is required.
Notes on context:
- Context is cleared when you set a new socks port
- Context is cleared when you connect/disconnect from a CS team server
After you set a socks proxy with the socks command, add context details with the context command.
RedShell> context -h usage: context [-h] [-d DNSNAME] [-n NETBIOSNAME] [-u USERNAME] [-p PID] ip_address Set a custom context (Source IP/DNS/NetBIOS/User/PID) for logging positional arguments: ip_address Source IP Address optional arguments: -h, --help show this help message and exit -d DNSNAME, --dnsname DNSNAME DNS Name -n NETBIOSNAME, --netbiosname NETBIOSNAME NetBIOS Name -u USERNAME, --username USERNAME User Name -p PID, --pid PID Process ID If you are using a pivot on a team server, context values are automatically set based on the beacon.
The command prompt is automatically updated with context variables (user@host).
The following RedShell commands are captured in activity logs:
beacon_exec- Execute a command through beacon socks proxy and simultaneously log it to the teamserver.proxy_exec- Execute a command through custom socks proxy and simultaneously log it to the local file.exec- Execute a command and log it to the local file.log- Add a manual log entry to the local file.
Set Cobalt Strike connection options:
redshell > set cs_host 127.0.0.1 redshell > set cs_port 50050 redshell > set cs_user somedude Connect to team server (you will be prompted for the team server password):
redshell > cs_connect Example:
Or load from a config file. Note: team server passwords are not read from config files. RedShell will prompt for the teamserver password and then automatically connect.
$ cat config.txt cs_host=127.0.0.1 cs_port=12345 cs_user=somedude cs_directory=/path/to/cobaltstrike/install redshell > cs_load_config config.txt Show available proxy pivots:
redshell > cs_pivots Example:
Select a proxy pivot (note: this can only be set after a connection to the team server has been established):
redshell > cs_use_pivot 2 SOCKS5 pivot requires authentication. Enter SOCKS5 user: username Enter SOCKS5 password: Check Cobalt Strike status:
redshell > cs_status Example:
Execute commands through the beacon socks proxy. These can be run in the context of the current user or via sudo. Specifying 'proxychains' in the command is optional. Commands are forced through proxychains. MITRE ATT&CK Tactic IDs are optional.
redshell > beacon_exec -h usage: beacon_exec [-h] [-t TTP] ... Execute a command through beacon socks proxy and simultaneously log it to the teamserver. positional arguments: command Command to execute through the proxy and log. optional arguments: -h, --help show this help message and exit -t TTP, --ttp TTP MITRE ATT&CK Tactic IDs. Comma delimited to specify multiple. example: beacon_exec -t T1550.002,T1003.002 cme smb 192.168.1.1 --local-auth -u Administrator -H C713B1D611657D0687A568122193F230 --sam Example:
Note on the Redshell and CS install directory options - the script needs to know where it lives, as well as Cobalt Strike. If stuff blows up, be sure to set the directories accordingly:
redshell > set redshell_directory /opt/redshell redshell > set cs_directory /opt/cobaltstrike Note on passwords used in *exec commands: special characters in passwords may be interpreted as shell meta characters, which could cause commands to fail. To get around this, set the password option and then invoke with '$password'. Example:
redshell > set password Test12345 password - was: '' now: 'Test12345' redshell > beacon_exec cme smb 192.168.1.14 --local-auth -u administrator -p $password --shares RedShell includes commands for navigating the file system:
redshell > cd /opt/redshell/ redshell > pwd /opt/redshell Additional commands can be run via the shell command or via the '!' shortcut:
redshell > shell date Mon 29 Jul 2019 05:33:02 PM MDT redshell > !date Mon 29 Jul 2019 05:33:03 PM MDT Commands are tracked and accessible via the history command:
redshell > history 1 load_config config.txt 2 status 3 help RedShell also includes tab-completion and clearing the terminal window via ctrl + l.
Datetime,IP Address,DNS Name,NetBIOS Name,User,PID,Activity,TTPs 2021/09/21 14:22:32 +0000,192.168.56.106,,WINDEV,USER,7312,[PROXY] cme smb 192.168.56.105, Notes:
- Required fields: Datetime, IP Address, Activity
- Optional fields: DNS Name, NetBIOS Name, User, PID, TTPs
- Datetime format: "%Y/%m/%d %H:%M:%S %z" (UTC)
This project is licensed under the terms of the Apache 2.0 open source license. Please refer to LICENSE for the full terms.