I've been logging port activity on 11768 since January 6th and have received over 1060 probes since then. The traffic attempts to this port peeked on Jan. 8 / 05 @ 5:00am CST. and have been steadily declining since. The activity has been coming from 1006 unique IP's but seems to have died down to 1 or 2 every hour or so. I've also read 1 other similar incident this week with port 19388.
