Threat Description

MadMan

Details

Aliases: MadMan
Category: Malware
Type: Virus
Platform: W32

Summary


Madman is a simple TSR, EXE infector. The virus body is encrypted with 16bit variable XOR key. The virus infects EXE files during the DOS close function.



Removal


Automatic action

Once detected, the F-Secure security product will automatically disinfect the suspect file by either deleting it or renaming it.

More

Detailed instructions for F-Secure security products are available in the documentation found in the Downloads section of our Home - Global site.

You may also refer to the Knowledge Base on the F-Secure Community site for further assistance.



Technical Details


The virus activates when ctrl-alt-del is used. First it displays a close-up ascii picture of a face and then it displays the following message and waits for a keypress:

Nothing can save you here, friend - you're in my world now!  

The virus also modifies batch files by adding an ECHO line at their end:

@ECHO I'm watching you!  

The virus also contains the text 'MadMan'.





Technical Details:Peter Szor, F-Secure, 1996


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