The remote host has been compromised and is running a 'Backdoor' program
The remote SSL server is using a certificate which has been revoked. The particular SSL certificate has a serial number of '\xe9\x02\x8b\x95\x78\xe4\x15\xdc\x1a\x71\x0a\x2b\x88\x15\x44\x47' and an Issuer of USERTRUST.
There is a high probability that your server has been compromised. You should manually inspect and fix this system.