2300 FTP accesses from Korea

["Gregory McCann" <cambria () owt com>]

Our log files show that someone at two different Korean ip addresses tried to access our ftp server (ProFTPD 1.2.0) 
over 2,300 times on Saturday.  What's the point?  Attempted denial of service maybe?  There does not seem to be any 
damage or breakin attempts.

First, someone at 211.203.38.222 made several connections per minute for nearly four hours.  Then ten hours later, 
someone at 211.247.56.102 did the same thing for about 25 minutes.

ftp      ftpd22972    Sat Jun 16 10:07 - 10:07  (00:00)     211.203.38.222
ftp      ftpd22971    Sat Jun 16 10:07 - 10:07  (00:00)     211.203.38.222
ftp      ftpd22970    Sat Jun 16 10:07 - 10:07  (00:00)     211.203.38.222
etc...

ftp      ftpd23704    Sat Jun 16 20:08 - 20:08  (00:00)     211.247.56.102
ftp      ftpd23703    Sat Jun 16 20:08 - 20:08  (00:00)     211.247.56.102
ftp      ftpd23702    Sat Jun 16 20:08 - 20:08  (00:00)     211.247.56.102
etc...

211.203.38.222 is registered to Hanaro Telecom, Inc. in Seoul.  http://www.hananet.net/main.htm

I couldn't locate 211.247.56.102 because the Korean whois server is dead at the moment.

Also, looking back a little farther in the logs, I see 537 attempts from 211.203.39.147 on 6/13.

Greg