I have an applicaction which is running with administrative privileges.
Privileges are escalated automatically using application manifest.
<requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
</requestedPrivileges>
From this app I have to execute some code as a user who started the app, but without elevation.
How can I achieve it?
You can use impersonation to achieve the desired results. In order to impersonate the current user without a password you need to find another process that the user has ran and get the token from that. Explorer is good for that. Here is full sample code.
Related
I'm writing a program in C # that needs administrator rights. To do this, I added the following lines to the "app.manifest" file:
<requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
</requestedPrivileges>
The request is working properly The program has administrator rights.
My problem is that on demand, the publisher is unknown and I do not know how to change it.
UAC image
I entered my name in the assembly, but it does not change anything.
Does anyone know how to change this value?
source: https://forum.powerbasic.com/forum/user-to-user-discussions/programming/59673-uac-message-publisher-unknown
In the above source a similar question is asked. The responses indicate the use of a codesigning certificate. There is also a mention to a how to in stackoverflow that explains how to create your own codesigning certificate: How do I create a self-signed certificate for code signing on Windows?
I have a program intended to be run in Command Prompt, that needs to require admin privileges.
I have <requestedExecutionLevel level="requireAdministrator" uiAccess="false" /> in my app.manifest file to make it require admin privileges. When this is set however, and I run MyApp.exe from a command prompt window, it runs the program in a new command prompt window (after asking for elevated access of course). If I take <requestedExecutionLevel level="requireAdministrator" uiAccess="false" /> out of my app.manifest it runs in the same window.
I need MyApp.exe to run in the same command prompt window I used to execute it while also requiring admin privileges. Is there a way to get this behavior?
I have researched over the internet about the UAC functionality on the form OK button but couldn't get the information. All of the information related to implementing the UAC is they relaunch the application with the administrative privileges.
My requirement is to make the application in which when user click on OK button with Shield Icon on it, user will be able to save some information in the windows Registry through elevate the user privilege but I don't want to relaunch the application with administrator rights.
Relaunching the application (or launching a helper application) is what you do. It is the requesting of elevated privileges while launching an application that causes the UAC confirmation screen to appear. The purpose of showing the shield icon is to let the user know that confirmation screen is coming up, basically.
You don't have to just relaunch your application. If your application allows multiple instances, you can launch a second copy with command-line parameters indicating the registry change to make. Or you can have a helper application that does admin things, and launch that as needed. A helper application doesn't need to create or show a window; it can be an entirely background operation.
May be you should add an application manifest and require administrator rights:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
<trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
<security>
<requestedPrivileges>
<requestedExecutionLevel level="requireAdministrator" uiAccess="false"/>
</requestedPrivileges>
</security>
</trustInfo>
</assembly>
Edit
It may not be the best solution here, because the entire application is running under elevated privileges and that can be a security vulnerability.
So, I have an app that needs admin rights to work.
I created an app.manifest file. It works perfectly.
But now I need to set my program to autostart in Windows, and I am having trouble with this. If my program has an app.manifest file - program does not load when windows starts, but when I delete the app.manifest file - it works well.
Here is code from the app.manifest file:
<?xml version="1.0" encoding="utf-8"?>
<asmv1:assembly manifestVersion="1.0" xmlns="urn:schemas-microsoft-com:asm.v1" xmlns:asmv1="urn:schemas-microsoft-com:asm.v1" xmlns:asmv2="urn:schemas-microsoft-com:asm.v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<assemblyIdentity version="1.0.0.0" name="update.app"/>
<trustInfo xmlns="urn:schemas-microsoft-com:asm.v2">
<security>
<requestedPrivileges xmlns="urn:schemas-microsoft-com:asm.v3">
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
</requestedPrivileges>
</security>
</trustInfo>
<compatibility xmlns="urn:schemas-microsoft-com:compatibility.v1">
<application>
<supportedOS Id="{35138b9a-5d96-4fbd-8e2d-a2440225f93a}"/>-->
</application>
</compatibility>
</asmv1:assembly>
Thanks for your help.
It’s not running because when you request admin access, the user needs to authorize it as admin (click the UAC Allow button), if it’s not popping up, there should be something in the icon-tray where the user can load all blocked exe's by clicking through the icon to give admin rights. when you run without the manifest, it is running only because it defaults to running under standard access (non-admin access, basic user level rights) so you're app is running but without being able to make changes to the system or file/path access items that only admin elevated apps can do. Get me?
The question is, how do you get your exe to auto start with admin privileges if it was installed and initially ran with admin elevated privileges during its installation? There seems to be a few answers to this but i am still searching for which one(s) actually work and are reliable. Basically, if it was elevated once, it should continue to be elevated (automatically, without prompting user) when it’s auto-starting (right after reboots) - but it is NOT doing that, and that's the problem. Let me know if you make progress with this.
UPDATE: 2012.11.10:
I have found a solution, using windows task scheduler to
programmatically schedule as task (that being, to run an EXE during
reboot/startup) & you have the option to run it as an elevated app,
and I think you need to be elevated to begin with in order to be able
to schedule this elevated auto run entry in the windows task
scheduler. Seems weird I know, but MS has allowed for this (and only
this) as a way to auto elevate your apps during startup, and they
haven't provided another way to do this. So, use appropriate API's to
register a Windows Task Schedule which will run your app elevated.
I'm not sure but it's probably about the authentication of startup user. if you did not already, you may check there for detailed information.
This question already has answers here:
Closed 11 years ago.
Possible Duplicate:
How to force C# App to run as administrator on Windows 7
I am building a WinForms C# appliction, and I need it to ask for administrator privileges so I can copy and open directories in C:\.
Is this possible?
The code I am going to use (if any one needs) is this:
if (!Directory.Exists("C:\\smm"))
{
Directory.Create("gg");
}
Or something like that, but I am sure I need administrator privilege.
Anyone know how I can do this?
You need to enable ClickOnce security settings in your project, then change the application manifest to require administrator privileges. This will cause Windows to show a UAC elevation prompt when the process starts, so the user can escalate your program to admin.
To enable ClickOnce, go into your project's properties, select the Security tab on the left, then check the "Enable ClickOnce Security Settings" box. Then go into the project's "Properties" directory, and open up the app.manifest file. In that file, there's a line that sets the required privileges:
<requestedExecutionLevel level="asInvoker" uiAccess="false" />
You can make it require administrator privileges like this:
<requestedExecutionLevel level="requireAdministrator" uiAccess="false" />
That'll make it require admin when the process starts.