diff --git a/htdocs/admin/security_other.php b/htdocs/admin/security_other.php
index 6697e433ce1..61f286003ec 100644
--- a/htdocs/admin/security_other.php
+++ b/htdocs/admin/security_other.php
@@ -64,9 +64,11 @@ if ($_POST["sendit"] && ! empty($conf->global->MAIN_UPLOAD_DOC))
 			{
 				$mesg = '<div class="error">'.$langs->trans("ErrorFileNotUploaded").'</div>';
 			}
-			else if (preg_match('/ErrorFileIsInfectedWithAVirus/',$resupload))	// Files infected by a virus
+			else if (preg_match('/ErrorFileIsInfectedWithAVirus.(.*)/',$resupload,$reg))	// Files infected by a virus
 			{
-				$mesg = '<div class="error">'.$langs->trans("ErrorFileIsInfectedWithAVirus").'</div>';
+				$mesg = '<div class="error">'.$langs->trans("ErrorFileIsInfectedWithAVirus");
+				$mesg.= '<br>'.$langs->trans("Information").': '.$langs->trans($reg[1]);
+				$mesg.= '</div>';
 			}
 			else	// Known error
 			{
diff --git a/htdocs/lib/antivir.class.php b/htdocs/lib/antivir.class.php
index 20f39344ac8..692591582b8 100644
--- a/htdocs/lib/antivir.class.php
+++ b/htdocs/lib/antivir.class.php
@@ -50,9 +50,10 @@ class AntiVir
 	}
 
 	/**
-	 *	\brief  	Scan a file with antivirus
-	 *	\param	 	file			File to scan
-	 *	\return	 	int				<0 if KO (-98 if error, -99 if virus), 0 if OK
+	 *	Scan a file with antivirus.
+	 *  This function runs the command defined in setup. This antivirus command must return 0 if OK.
+	 *	@param	 	file			File to scan
+	 *	@return	 	int				<0 if KO (-98 if error, -99 if virus), 0 if OK
 	 */
 	function dol_avscan_file($file)
 	{