Only Bitdefender to detect malware here?

See: https://www.virustotal.com/en/url/878a0d0f4245b712e6c284bae04c90474342d64f5357ce50e1d21b76a6c39df5/analysis/1426976064/

ISSUE DETECTED DEFINITION INFECTED URL
Website Malware malware-entry-mwblacklisted35 htxp://yalta-info.net
Website Malware malware-entry-mwblacklisted35 htxp://yalta-info.net/./ucp.php?mode=login&sid=3954e6667e8257259e81ad9e01db4c37
Website Malware malware-entry-mwblacklisted35 htxp://yalta-info.net/./ucp.php?mode=register&sid=3954e6667e8257259e81ad9e01db4c37
Website Malware malware-entry-mwblacklisted35 htxp://yalta-info.net/./faq.php?sid=3954e6667e8257259e81ad9e01db4c37
Website Malware malware-entry-mwblacklisted35 htxp://yalta-info.net/./search.php?sid=3954e6667e8257259e81ad9e01db4c37
Website Malware malware-entry-mwblacklisted35 htxp://yalta-info.net/./search.php?search_id=unanswered&sid=3954e6667e8257259e81ad9e01db4c37
Suspicious domain detected. Details: http://sucuri.net/malware/malware-entry-mwblacklisted35

Suspicious files: 332 → Detected reference to suspicious blacklisted domain -connect.mail.ru & -airgun.yalta-info.net
Missed completely and utterly here: http://killmalware.com/yalta-info.net/
and here: http://zulu.zscaler.com/submission/show/f1aea028a43fff0867f7401a416cb4eb-1426976680
IP badness history: https://www.virustotal.com/en/ip-address/91.201.52.47/information/

Attached I give the results of an external elements tracking Tracker report.
Do not open the links you find there in a browser. Info just for research purposes only.

polonus