Hi there. An expert in the malware forums advised me to repost my issue here in the hope that someone will be able to help me.
I have been receiving the message "The server's security certificate is revoked!" when trying to access certain sites in Google Chrome. It appears to be sites with the https prefix, including Facebook, Paypal and Soundcloud. I encounter a similar problem when using Internet Explorer but not when using Firefox.
The full message reads: "You attempted to reach paypal.com, but the certificate that the server presented has been revoked by its issuer. This means that the security credentials the server presented absolutely should not be trusted. You may be communicating with an attacker.
You cannot proceed because the website operator has requested heightened security for this domain."
In case it is of any use, my earlier thread can be found here: http://www.bleepingcomputer.com/forums/t/513739/the-servers-security-certificate-is-revoked-when-using-chrome/#entry3210552
Any advice you can offer would be greatly appreciated.