Highlight dynamic endpoints on webpages

Latest Version

Version
1.2
Update
October 29, 2024
Size
38.84KiB
Developer
Category
Users
3
Rating
1 ★
Manifest Version
3
Web Store Status
Languages Support
English (United States)
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Permissions
ActiveTab
WebNavigation
Storage
Scripting

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Marksman Extension

The purpose of this tool is to assist with casual web application penetration testing during large scope engagements where pages may contain dozens or hundreds of links and references to additional endpoints. The tool aims to give testers visual indicators that can help them streamline their attention and focus on elements of interests for further testing without clicking through large numbers of static resources.

In 1 click, the tool will highlight in yellow all href elements that refer to pages with the potential for dynamic functionality (asp, php, aspx, jsp, jspx, etc.). The tool will also highlight in red all href elements that contain HTTP GET parameters, after identifying these via regular expression. Finally the tool highlights in magenta any input form elements that result in dynamic HTTP POST requests. This should ideally assist penetration testers in focusing quickly on elements of interest for further investigation.

If you want to have the functionality running continuously, simply select the INFINITE MODE checkbox and press the FIRE button. The plugin will automatically perform targeting during navigation until the checkbox is deselected by the user.

The tool is equally useful for reconnaissance on search results page to visually identify interesting endpoints containing the aforementioned properties.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "Marksman", "version": "1.2", "description":"Highlight dynamic endpoints on webpages", "action": { "default_popup": "popup.html", "default_icon": "logo.png" }, "permissions": [ "activeTab", "webNavigation", "storage", "scripting", "" ], "host_permissions": [ "" ], "content_scripts": [ { "matches": [""], "js": ["content.js"] } ], "background": { "service_worker": "service-worker.js", "persistent": false }}
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How to download and manually install Marksman extension for Chrome

Looking for a way to install Marksman extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install Marksman extensions manually, this article outlines two simple methods to effortlessly install Marksman extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Marksman extension and manually install through Drag &Drop

If you ever need to manually install a Marksman extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the Marksman Extension by clicking the "Download CRX" button on the website.

Look for the Marksman extension you wish to install. Go to the website and download the Marksman extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Marksman extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the Marksman extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download Marksman extension for Chrome and install in Developer Mode

This is another method to install Marksman extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the Marksman extension file

Select and download the Marksman extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the Marksman extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Marksman extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the Marksman extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install Marksman extension in 2 ways. We hope this guide proves helpful.

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