false positive or real threat?

the website wxw.smilengo.org is blocked since years ago in Avast. I had it checked in Virustotal and it does not find anything. This is what Avast reports: http://www.avast.com/en-eu/lp-fr-virus-alert?p_ext=&utm_campaign=Virus_alert&utm_source=prg_fav_90_0&utm_medium=prg_systray&utm_content=.%2Ffa%2Fen-eu%2Fvirus-alert-default&p_vir=JS:Redirector-T%20[Trj]&p_prc=C:\Program%20Files%20(x86)\Google\Chrome\Application\chrome.exe&p_obj=h_www_smilengo_org__&p_var=.%2Ffa%2Fen-eu%2Fvirus-alert-default&p_elm=7&p_lex=312&p_lid=en-eu&p_lng=en&p_lqa=0&p_lqe=0&p_lst=0&p_lsu=24&p_pro=0&p_bld=empty&p_vep=9&p_ves=0&p_vbd=2013&p_hid=7d5d1e87-3780-4143-829b-ec44a4c62ef5&p_ram=16313&p_cpu=8.3

what do you think?

I had it checked in Virustotal and it does not find anything.
if you did VirusTotal URL scan, this is only a reputation check against known blacklits...

VirusTotal
https://www.virustotal.com/nb/file/4798f89b2cb5b80164d2eb7a0a2dc8fb2be4c6d98e4f30fa66aaea9e2a2421d6/analysis/1396384761/

DNS issues: http://dnscheck.pingdom.com/?domain=www.smilengo.orghttp://dnscheck.pingdom.com/?domain=www.smilengo.org&timestamp=1396385174&view=1 wXw.smilengo.org,Ghosted,
Joomla version outdated: Upgrade required. Joomla Version 1.5.18 - 1.5.26 for: htxp://www.smilengo.org/media/system/js/caption.js
Joomla Version 1.5.18 to 1.5.26 for: htxp://www.smilengo.org/language/en-GB/en-GB.ini
Joomla version outdated: Upgrade required.
Badness history of IP: https://www.virustotal.com/nl/ip-address/216.97.235.25/information/
alive malware on IP: http://support.clean-mx.de/clean-mx/viruses?id=12519327

avast Webshield detects JS:Redirecvtor-T[Trj] on site. Nothing here: http://urlquery.net/report.php?id=1396385896432

pol

Hello,
there is detected JS:Redirector-T [Trj], see the screenshot attached.

Milos