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 automatically delete, quarantine or rename the detected program or file, or ask you for a desired action.
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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'.
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