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 Disinfection

Allow F-Secure Anti-Virus to disinfect the relevant files.

For more general information on disinfection, please see Removal Instructions.



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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