Hello,

I'm trying to capture the traffic from an app which is refusing to connect to local proxy (127.0.0.1, 192.168.X.X), but accepts other proxies.

My goal is to create a local virtual interface, with an IP such as 10.0.0.1, and I would like to set my proxy to this IP.

It would be convenient for me if I could tell Fiddler to set the local proxy to this IP and listen on this interface instead of the usual 127.0.0.1. Is it possible ? How ?

As an other option, I could use the setting "Allow remote computers to connect" and set the proxy settings manually, but Fiddlers doesn't let me do that on the same computer as it stops listening when I manually change proxy settings.

Any help would be much appreciated.

I wanted to obtain the HTTPS POST URL generated from a "highly obfuscated" Phish in HTML format.  But I had problems.

I exported the Certificate generated by Fiddler Classic, v5.0.20204.45441, and I was surprised to see the Certificate expired on 6/12/'21.  I see that that is is the last released version.

Is there an update to Fiddler Classic that will generate a Trusted Cert that is current and not expired ?

I am working on fiddler core with C#. But FiddlerApplication.Shutdown(); I don't think your command works. FiddlerApplication.Shutdown(); After the application, the internet access of the current computer is turned off. When the fiddler core application is closed, as in the picture I shared, internet access is cut off when the fiddlerapplication.shutdown command is applied.

How can I solve this problem?

For example, we cannot access any websites or internet when the internet is disconnect ;

Note: This problem happens when I close and open the program 3 or 5 times.

Hello,

I have attached the source code of my work. When the program opens, it installs a certificate and asks such questions. I want it to install and pass the fiddler certificate without asking this question. Is it possible?

A "yes, no" screen appears like this while installing the certificate. I want it to install without asking. (Hidden Install Certificate) Is that possible?

Hello,

I have added request by timer custom code.

FiddlerApplication.UI.actCaptureScreenshot(false);

What should be added in this part to Stop Timer using hotkey?

Thanks.

Regards,

Adam

Hello everybody

i have this code in fiddlerScript :

        if(oSession.HostnameIs("example.com")) { 
            oSession.utilDecodeResponse();
            oSession.utilReplaceRegexInResponse('text-align: left; width: 120px;">[^<]*</span>','text-align: left; width: 120px;">xxxxxxxxx</span>');
            oSession.utilReplaceRegexInResponse('text-align: left; width: 145px;">[^<]*</span>','text-align: left; width: 145px;">yyyyyyyy</span>');

---------------------------------------

In the webpage there is more element that will begin like that :    text-align: left; width: 145px;

my question is : how can i replace only the first string that will seen on the webpage , not all  ?!?!

thanks !

Hello, I have some old OAUTH/XAUTH code I am debugging and it uses the old DevDefined library.  The underlying HTTP requests/responses are simply not being picked up by Fiddler.  All other requests and responses on my machine are being picked up and displayed.

Here is an example of some C# code invoking the DevDefined method GetAccessTokenUsingXAuth(), and I know it is running and working, but I can't see the underlying request/response and wonder if some proxy is involved:

        /// <summary>
        /// Create Session
        /// </summary>
        /// <returns>Session, authorized for OAUTH using XAUTH protocol</returns>
        private static IOAuthSession CreateSession()
        {
            var consumerContext = new OAuthConsumerContext
            {
                ConsumerKey = ConsumerKey,
                ConsumerSecret = ConsumerSecret,
                SignatureMethod = SignatureMethod.HmacSha1,
            };

            var session = new OAuthSession(consumerContext, new Uri(BdBaseUrl + XAuthRelativeUrl));

            try
            {
                session.GetAccessTokenUsingXAuth(null, ServiceUser, ServicePassword);
            }
            catch (Exception e)
            {
                if (DumpOAuthInfoOnException)
                {
                    string serializedSession = JsonConvert.SerializeObject(session);
                    string msg =
                        $"Inner Exception on GetAccessTokenUsingXAuth.  Username {ServiceUser}, Password {ServicePassword}, Session: {serializedSession}";
                    throw new Exception(msg, e);
                }
                throw;
            }

            return session;
        }

i need to replace 2 dynamic values from a website ! everytime when i visit website i will see randomize numbers like a clock ! and i need to catch the values to replace with anothers. i attached a PART of the website to see it !

i have tryed this and not work :

  static function OnBeforeResponse(oSession: Session) {
        if (m_Hide304s && oSession.responseCode == 304) {
            oSession["ui-hide"] = "true";
        }
        if(oSession.HostnameIs("example.com"))
        {
            oSession.bBufferResponse = true;
            oSession.utilDecodeResponse();
        
            var pattern = '<SPAN
        id=ValueA class=CSItemLabel
        style="FONT-SIZE: 11px; HEIGHT: 17px; WIDTH: 120px; FONT-WEIGHT: bold; COLOR: green; PADDING-BOTTOM: 2px; TEXT-ALIGN: left; PADDING-TOP: 0px; PADDING-LEFT: 2px; DISPLAY: inline-block; PADDING-RIGHT: 0px; BACKGROUND-COLOR: #efefef\">(?<VAL>.*)</SPAN>';        
                    
            var sNewBody: Match = Regex.Match(oSession.GetResponseBodyAsString(),pattern);
            var valueA = sNewBody.Groups["VAL"].Value;

        
            pattern = '<SPAN id=ValueB
        class=CSItemLabel
        style="FONT-SIZE: 11px; HEIGHT: 17px; WIDTH: 145px; FONT-WEIGHT: bold; PADDING-BOTTOM: 2px; TEXT-ALIGN: left; PADDING-TOP: 0px; PADDING-LEFT: 2px; DISPLAY: inline-block; PADDING-RIGHT: 0px; BACKGROUND-COLOR: #efefef\">(?<VAL>.*)</SPAN>';
            var sNewBody2 : Match = Regex.Match(oSession.GetResponseBodyAsString(),pattern);
            var valueB = sNewBody2.Groups["VAL"].Value;
        
            var strContent = oSession.GetResponseBodyAsString().Replace(valueA,"99.614,99").Replace(valueB,"88.123,88");
        
            oSession.utilSetResponseBody(strContent);
        }
    }

also i tryed this :

if (oSession.HostnameIs("https://example.com) && oSession.url.EndsWith("etc.aspx"))
{   
   oSession.utilDecodeResponse();
   var sBody = oSession.GetResponseBodyAsString();
   sBody = Regex.Replace(sBody, "(<SPAN id=ValueA class=CSItemLabel[^>]+>)[^<]+", "$1 99.614,99");
   sBody = Regex.Replace(sBody, "(<SPAN id=ValueB class=CSItemLabel[^>]+>)[^<]+", "$1 88.123,88");
   oSession.utilSetResponseBody(sBody);
}
 

no success ! please help me somebody !

i attached the files to see it ! thanks in advice !

I tried to create a certificate by this way.

1. Install  "fiddlercertmaker.exe" (get it from http://fiddler2.com/r/?fiddlercertmaker/.)
2. ”prefs set fiddler.certmaker.bc.ee.yearsvalid 1”
3. Options -> HTTPS tab -> "Actions" -> ”Reset All Certificates”
4. Options -> HTTPS tab -> "Actions" -> ”Trust Root Certificates" 

see config.jpg and Option.jpg

However, the term of the certificate is 10 years.”Certificates.jpg”

If my understanding is mistaken, please tell me.