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

You may wish to refer to the Support Community for further assistance. You may also refer to General Removal Instructions for a general guide on alternative disinfection actions.



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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