As it says, Chrome, Firefox, and Internet Explorer all give the certificate error message for any and every website attempted - including the Firefox add-ons page. The s… (xem thêm)
As it says, Chrome, Firefox, and Internet Explorer all give the certificate error message for any and every website attempted - including the Firefox add-ons page. The specific error is the "no issuer chain was provided".
1) This problem is not on my computer - it is on my mother's computer in another city. Therefore, I cannot attempt every little possibility without flying over there - I'm looking for things I can tell her to do over the phone. The problem started today. I've already given her the list of anti-malware programs to go install and run from here:
Note that, of course, she will have to accept the security certificate override to get to these things - I hope this isn't bad.
2) The problem started after she tried to use Skype, it hung for a very long time and would never log on. So she tried to reinstall it - and she said she clicked through a number of agreement screens and believes she may have installed malicious 3rd party software. This is ridiculous, is Skype now putting malware on people's computers through these bogus 3rd party add-ons at installation? I suppose it is possible Skype was hanging because of some other problem - but she did manage to reinstall Skype and got it to work (but now her internet certificates won't).
3) She has BitDefender. I am aware that it says here:
that she should turn off SSL scanning. She turned it off, it did not solve the problem. She turned it off and restarted, it did not solve the problem. She has had it on for the past 6 months and it has never caused a problem.
4) In addition, BitDefender reported today that it stopped a malicious program called MySearchDial.exe from attempting something it shouldn't. We went through this removal guide:
however, the software MySearchDial was never actually installed into the windows install list, and we did not find any addons/plugins in any of the browser lists (note that Firefox add-ons cannot be accessed with a certificate error, it gives the error message but DOES NOT give you the option to add an exception so you can't access the add-ons). The only thing we found was (a) MySearchDial was default in the IE search engine list, despite there being no add-on, and (b) MySearchDial.exe was in the temp folder (now deleted). I note that I had BitDefender scan the temp folder *before* I deleted MySearchDial.exe, and it claimed no threats were found. What? It was BitDefender that warned me of it in the first place!
5) Time and date are correct.
6) Checked the Win 7 install log, only Skype, Skype Click-to-Call, and (for some reason) Mircosoft Visual Studio 2010 and Visual C++ were installed or altered today. I got paranoid about Click-to-call and asked her to uninstall it, but it didn't solve the problem.
7) The OS is Win7 64bit Home.
Anything beyond endless Malware removal programs (via list linked above) that we should try?