sfsi_buttons_controller causing my site to be blocked due to malicious code

Replies: 0

Hi – malware scanners are blocking my site – this is the report from Defender Pro:

sfsi_buttons_controller
Suspicious function found

Issue Details
We’ve uncovered suspicious code in /home/keytolinkedin/public_html/wp-content/plugins/ultimate-social-media-icons/libs/controllers/sfsi_buttons_controller.php.

Suspicious function found

function sfsi_OfflineChatMessage()
{
error_reporting(0);
// extract($_POST);
if (!wp_verify_nonce($_POST[‘nonce’], “OfflineChatMessage”)) {
echo json_encode(array(“wrong_nonce”));
exit;

Please advise. Thanks