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.
Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.
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'.
Date Created: -
Date Last Modified: -