Tuesday, September 1, 2015

Hacking on XP part 3



How to Forge Email with Windows XP Telnet

Want a computer you can telnet into and mess around with, and not get into trouble no matter what you do to it? I've set up my
techbroker.com (206.61.52.33) with user xyz, password guest for you to play with. Here's how to forge email to xyz@techbroker.com using
telnet. Start with the command:

C:\>telnet techbroker.com 25
Connecting To Techbroker.com

220 <techbroker.com> Service ready
Now you type in who you want the message to appear to come from:
helo santa@techbroker.com
Techbroker.com will answer:

250 <techbroker.com> host ready
Next type in your mail from address:
mail from:santa@techbroker.com
250 Requested mail action okay, completed
Your next command:
rcpt to:xyz@techbroker.com
250 Requested mail action okay, completed

Your next command:
data
354 Start main input; end with <CRLF>.<CRLF>

Newbie note: <CRLF> just means hit return. In case you can't see that little period between the <CRLF>s, what you do to end composing your email is to hit enter, type a period, then hit enter again.
Anyhow, try typing:
This is a test.
.
250 Requested mail action okay, completed
quit
221 <techbroker.com> Service closing transmission channel

Connection to host lost.
Using techbroker's mail server, even if you enable full headers, the
message we just composed looks like:

Status: R
X-status: N

This is a test.
That's a pretty pathetic forged email, huh? No "from", no date.
However, you can make your headers better by using a trick with the data command. After you give it, you can insert as many headers as you choose. The trick is easier to show than explain:

220 <techbroker.com> Service ready
helo santa@northpole.org
250 <techbroker.com> host ready
mail from:santa@northpole.com
250 Requested mail action okay, completed
rcpt to:<script language="JavaScript"><!-- var name = "cmeinel"; var domain = "techbroker.com"; document.write('<a href=\"mailto:' + name + '@' + domain + '\">'); document.write(name + '@' + domain + '</a>'); // --></script>
250 Requested mail action okay, completed
data
354 Start main input; end with <CRLF>.<CRLF>
from:santa@deer.northpole.org
Date: Mon, 21 Oct 2002 10:09:16 -0500
Subject: Rudolf
This is a Santa test.
.
250 Requested mail action okay, completed
quit
221 <techbroker.com> Service closing transmission channel

Connection to host lost.
The message then looks like:
from:santa@deer.northpole.org
Date: Mon, 21 Oct 2002 10:09:16 -0500
Subject: Rudolf
This is a Santa test.

The trick is to start each line you want in the headers with one word
followed by a colon, and the a line followed by "return". As soon as
you write a line that doesn't begin this way, the rest of what you
type goes into the body of the email.

Notice that the santa@northpole.com from the "mail from:" command didn't show up in the header. Some mail servers would show both "from" addresses.
You can forge email on techbroker.com within one strict limitation.
Your email has to go to someone at techbroker.com. If you can find any way to send email to someone outside techbroker, let us know, because you will have broken our security, muhahaha! Don't worry, you have my permission.

Next, you can read the email you forge on techbroker.com via telnet:
C:\>telnet techbroker.com 110
+OK <30961.5910984301@techbroker.com> service ready
Give this command:
user xyz
+OK user is known

Then type in this:
pass test
+OK mail drop has 2 message(s)

retr 1
+OK message follows
This is a test.

If you want to know all possible commands, give this command:
help
+OK help list follows
USER user
PASS password
STAT
LIST [message]
RETR message
DELE message
NOOP
RSET
QUIT
APOP user md5
TOP message lines
UIDL [message]
HELP

Unless you use a weird online provider like AOL, you can use these
same tricks to send and receive your own email. Or you can forge email to a friend by telnetting to his or her online provider's email
sending computer(s).



MAXIT INTERNET

BLOGGER

CD DVD RW

DELL

DOWNLOAD

FTP Server Linux

HACK

HARD DRIVE

HOW TO WORKIN

HARDWAER

INTERNET

INTERNET CAFE

LAPTOP

LENOVO

LINUX

Additional configuration for Samba Server (Part 2)  

BSNL/Airtel/Idea using Huawei E156G 3g Wireless USB Linux 5   

Basic File Extensions    CHANGING AN ACCOUNT EXPIRATION DATE   

Configure Linux as a Router   

Configure SAMBA Server (Part-1)   

Configure VNC server   

Configure Yum Server (Part-1)   

Configure yum server for Client machine (Part 3)   

Configuring Samba as a Standalone Server (Part 3)  

Connecting ftp Server with Anonymous User Part 5  

Create ftp account with Shared directory Part 3  

DHCP Server Configuration Part 2  

DHCP Server Configuration Part-1  

DHCP Server Configuration Part-3  

Enabling FTP Services in Yum Server (Part 5)  

FTP Server Configuration Part 1  

FTP Server How to Change In Primary DNS Server Part 2  

HTTP Client side configuration (Part 4)  

How to Vsftpd conf files Parameter Part 6   

LINUX FILE SYSTEM STRUCTURE  

Linux User Administrtion  

Linux as a Router configuration for Client Machine   

Linux client machine FileZilla FTP Client Part 4  

Local Yum Server (Part 2)  

Modifying Existing User Information  

Primary DNS Server Configuration Part-1  

Primary DNS Server Configuration Part-2    

Primary DNS Server Configuration Part-3  

Remove Linux From Your Pc Safely and restoring your MBR  

Sharing & Accessing Samba Share (Part 4)   

Speeding up your internet connection under Linux and Windows   

THE ROOT FILE SYSTEM   

VNC Server Configuration

LINUX LAB

Linux as a Router

MOTHERBOARD

Mobile

NETWORKING

REDHAT 5

REGISTRY EDTOR

RESET BIOS PASSWORD

SAMBA Server Linux

SERVER

SERVER CONFIG

SOFTWAER

VNC server Linux

Window 10

Window XP