WordPress security issues and malware on website detected?

See it alerted here: https://urlquery.net/report.php?id=1443997594894
The code can be seen here: http://www.domxssscanner.com/scan?url=http%3A%2F%2Fwww.macizletv.com%2F
VT scan does not flag a thing: https://www.virustotal.com/nl/url/a8b692ecf2311710ae2834a9308c4d3f5f219a1cf780f3b0e9820db3bc0d42ef/analysis/1443997868/
and here: http://quttera.com/detailed_report/www.macizletv.com
Sucuri does not let us down and flags it as critical malware: Website Malware malware-entry-mwanomalysp8 -http://www.macizletv.com
Website Malware malware-entry-mwanomalysp8 -http://www.macizletv.com/404testpage4525d2fdc
Website Malware malware-entry-mwanomalysp8 -http://www.macizletv.com/404javascript.js
Website Malware malware-entry-mwanomalysp8 -http://www.macizletv.com/canli-mac-sonuclari
Website Malware malware-entry-mwanomalysp8 -http://www.macizletv.com/istatistikler
Website Malware malware-entry-mwanomalysp8 -http://www.macizletv.com/iddaa-programi
Anomaly behavior detected (possible malware). Details: http://sucuri.net/malware/malware-entry-mwanomalysp8

Read on that issue: http://stackoverflow.com/questions/20770198/assigning-jquery-html-to-php-variables
and http://jsfiddle.net/Tkru9/ embedded chatango chat within the page, PANDA resistfeedsource?

Now the WP issues: Warning User Enumeration is possible
The first two user ID’s were tested to determine if user enumeration is possible.

ID User Login
1 None admin
2 None
It is recommended to rename the admin user account to reduce the chance of brute force attacks occurring. As this will reduce the chance of automated password attackers gaining access. However it is important to understand that if the author archives are enabled it is usually possible to enumerate all users within a WordPress installation.

Only the first two user ID’s were tested with this scan, use the Nmap NSE enumeration scripts (use your own Nmap installation or try option 2 below) to discover additional user ID’s.

Warning Directory Indexing Enabled
In the test we attempted to list the directory contents of the uploads and plugins folders to determine if Directory Indexing is enabled. This is an information leakage vulnerability that can reveal sensitive information regarding your site configuration or content.

/wp-content/uploads/ enabled
/wp-content/plugins/ disabled
Directory indexing was tested on the /wp-content/uploads/ and /wp-content/plugins/ directores. Note that other directories may have this web server feature enabled, so ensure you check other folders in your installation. It is good practice to ensure directory indexing is disabled for your full WordPress installation either through the web server configuration or .htaccess.

No iframes detected (in or out).
No Remote Javascript detected (in or out).

polonus (volunteer website security analyst and website error-hunter)