cmd.exe launch issue

[web_poster03]

from Start -> Run:
type the full path to execute c:\WINDOWS\system32\cmd.exe, I can get
the Command Prompt window.

Type cmd.exe only, then the Command Prompt window flashes and
disappears right away.

What is the problem?

TIA

 

[Detlev Dreyer]

from Start -> Run:
type the full path to execute c:\WINDOWS\system32\cmd.exe, I can get
the Command Prompt window.

Type cmd.exe only, then the Command Prompt window flashes and
disappears right away.

What is the problem?

Control Panel > System > Advanced tab > Environment Variables. Make sure
that the system variable 'Path' starts with "C:\WINDOWS\system32;".

 

[Pegasus \(MVP\)]

from Start -> Run:
type the full path to execute c:\WINDOWS\system32\cmd.exe, I can get
the Command Prompt window.

Type cmd.exe only, then the Command Prompt window flashes and
disappears right away.

What is the problem?

TIA

Further to Detlev's reply: You appear to have a rogue program
somewhere under the name of cmd.exe, perhaps some malware.
You should hunt it down and at the very least rename it to render
it harmless.

 

[web_poster03]

Further to Detlev's reply: You appear to have a rogue program
somewhere under the name of cmd.exe, perhaps some malware.
You should hunt it down and at the very least rename it to render
it harmless.

Thanks for your suggestion. That is my suspect too. My computer
recently was infected by VBS_PSYME.gen file. I could not find any
other cmd.exe file except for in the windows\system32.

I found 2 strange things:
1. if I cd back to C:\, the window will be closed.
2. if I type "echo" command, the window will be closed too.

Any further help will be appreciated.

 

[Pegasus \(MVP\)]

Thanks for your suggestion. That is my suspect too. My computer
recently was infected by VBS_PSYME.gen file. I could not find any
other cmd.exe file except for in the windows\system32.

I found 2 strange things:
1. if I cd back to C:\, the window will be closed.
2. if I type "echo" command, the window will be closed too.

Any further help will be appreciated.

"echo" is a command internal to the command processor. If the
current window closes each time you type "echo" then your
command processor is compromised. You could do this:
- Run sfc.exe /scannow from a Command Prompt.
- Use System Restore to return your machine to a point well
before these problems started.

 

[web_poster03]

"echo" is a command internal to the command processor. If the
current window closes each time you type "echo" then your
command processor is compromised. You could do this:
- Run sfc.exe /scannow from a Command Prompt.
- Use System Restore to return your machine to a point well
before these problems started.- Hide quoted text -

- Show quoted text -

Thank you. I will try to see.