Monday, September 28, 2015

How To Hack Smtp Email Server

How To Hack Smtp Email Server

Hack Smtp Server Backtrack


Hack Smtp Server Backtrack

SMTP stands for ‘Simple Mail Transfer Protocol’ & this email communication protocol was designed for ‘functionality’ not for ‘security’. The SMTP is the part of ‘TCP/IP’ protocol, which utilizes a procedure called ‘store & forward’. The SMTP moves your email on & across the networks. It provides a bunch of codes that define the communication of email message between email servers & it is a type of ‘shorthand’ that permits a server to ‘break up’ different parts of a ‘message’ into the ‘categories’ the other ‘servers’ can understand.
  • The attackers can verify whether ‘email account’ exist on a ‘server’ is simply to ‘Telnet’ to the server on port ‘25’ & run the ‘VRFY’ command. This command makes a ‘server’ to check whether a ‘user id’ exists or not. The ‘spammers’ automate this method to perform a ‘directory’ harvest attack, which is a way of obtaining valid email addresses from a server for hackers to utilize.
  • The ‘scripting’ of this attack can test thousands of ‘email address’ couples or combinations. The command ‘EXPN’ allows or permits the attackers to verify ‘what mailing lists exist on a server’.
  • You can simply or easily Telnet to your ‘email server’ on port ‘25’ & try ‘EXPN’ on your system.
  • In ‘Net scan tools’, you can enter values for the ‘SMTP’ mail ‘server-name’, sending out the ‘domain-name’. Under the ‘test message’ settings, enter or type the ‘recipient email address’ & ‘sender’s email address’.
  • At last, when the ‘test’ is complete or finish, then click on ‘view relay test results’.



Hack Email Server With Telnet


Hack Email Server With Telnet

A ‘mail transfer agent or MTA’ is a computer program that transfers the electronic mail messages from one computer system to another.
  • First, you are required to decide your goal or target.
  • Then open ‘cmd’ & type or give command ‘nslook up’ then press enter.
  • Now locate the ‘address’ of mail exchange in the result or output, close this cmd & open ‘new’ & give the command to enter in ‘mail exchange’ server.
  • If it connects that means or depicts you are in the ‘mail exchange’ server, now you have to begin or start communication with the server by using ‘smtp commands’.
  • Now type the commands in order to communicate with the ‘server’.
  • Helo- name of the website,
  • ‘Mail-From’- ‘email address’ of the ‘sender’,
  • Recpt To: emaill address of the receiver,
  • Data
  • Quit or Close.
  • It’s all, you have sent a ‘fake’ mail by using their own server.



How To Hack Email Exchange Server


An ‘Email exchange server’, is a software that is combination of an ‘email server, email client, & other group ware utilities’. It is used in combination with the ‘Microsoft outlook’. The ‘Exchange server’ enables or allows a user to securely access the conversations like: email messages, voice mail, instant messaging & text message, web browsers or mobile device.
  • The ‘Smartphone’s’ connect to ‘Exchange server’ with a secured & self assigned SSL certificate. The same conversation is possible when those certificates are ‘spoofed’.
  • When the devices connect to the network, & fetch email from the ‘Exchange servers’, it will access the ‘cheated/spoofed exchange server’ & the hacker captures everything.