Problem with website certificate?

yahoo.com resolves to 98.139.183.24

Server Type: YTS/1.20.28

The certificate should be trusted by all major web browsers (all the correct intermediate certificates are installed).

The certificate was issued by GeoTrust.

The certificate will expire in 591 days.

The hostname (yahoo.com) is correctly listed in the certificate.

http://www.sslshopper.com/ssl-checker.html#hostnam...

Make sure everything in Date & Time is correct including Time Zone

There is a possibility of Malware causing this(Outside chance but still possible)

I would at least check for that and if you come up clean, Great, but at least you know it's not that

Malwarebytes Antimalware. Normally I suggest a Quick scan, but in this case do a FULL scan

Home page

http://www.malwarebytes.org/

KnowledgeBase

https://malwarebytes.zendesk.com/home

Download

http://downloads.malwarebytes.org/mbam-download.ph...

NOTE: Decline the 14 day Trial for now(You can try it later if you wish to) It's not needed for detecting and removing anything it finds. Malwarebytes does that for Free

Please post back and let us know the scan results(if you choose to use it)

EDIT: A fully updated IE and/or windows in windows XP gives NO cert. error

Its a bit difficult to know without more information. What is the precise error message? Do you get the error no matter what website you visit?

One issue that I have seen that have caused this error to show up a lot of places is that the time on the computer is set wrong. Because of this the certificates appear to the computer to be out of date and not safe, so you might wanna check that.

"On board" browser certificates not current.

Vista/Win7: Go to your "Windows update" in Control Panel> follow prompts.

XP by any chance?

IE8> Security > Windows Update.

When @ Microsoft Updates, click the 'Custom' button, not the 'Express'.

This will give you hardware & software updates specific to your unit.

Includes specific drivers & "Root Certificates".

["Express" and "Automatic Updates" only gives Windows operating system updates]

you might have to change the date and time in your Bios

[cmos]