I've been seeing more aggressive attempts than that here. Here is a recent example. They attempt to CWD to a large number of common ftp directory names. If successful, they try to create a directory there. This user repeated the exact same scan five minutes later. (To save space I have only included the first one.)

"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","nobody","[10/Aug/2001:19:49:24 -0700]","USER anonymous","331","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:25 -0700]","PASS guesthere.com","230","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:25 -0700]","CWD /","250","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:26 -0700]","MKD 010811125809p","550","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:26 -0700]","CWD /public/","550","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:27 -0700]","CWD /pub/incoming/","550","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:27 -0700]","CWD /incoming/","550","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:28 -0700]","CWD /_vti_pvt/","550","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:28 -0700]","CWD /pub/","550","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:29 -0700]","CWD /upload/","250","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:29 -0700]","MKD 010811125813p","550","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:30 -0700]","CWD /~tmp/","550","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:30 -0700]","CWD /~temp/","550","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:31 -0700]","CWD /tmp/","550","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:31 -0700]","CWD /temp/","550","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:31 -0700]","CWD /_vti_cfg/","550","-","-","-"
"EHPP-p-203-54-74-21.prem.tmns.net.au","203.54.74.21","O-TaGGeR-O","ftp","[10/Aug/2001:19:49:32 -0700]","CWD /_vti_txt/","550","-","-","-"

>-----Original Message-----
>From: Emil Popov [mailto:emods.primasoft.bg]
>Sent: Monday, August 20, 2001 3:33 AM
>To: incidentssecurityfocus.com
>Subject: annoying ftp probes
>
>
>Hi,
>
>I have been getting some annoying connections to my ftpd like:
>
>Aug 20 07:58:28 ds ftpd[7527]: connection from
>cc821361-d.vron1.nj.home.com
>Aug 20 07:58:29 ds ftpd[7527]: ANONYMOUS FTP LOGIN FROM
>cc821361-d.vron1.nj.home.com, guesthere.com
>Aug 20 07:58:30 ds ftpd[7527]: mkdir 010820012936p
>Aug 19 06:37:34 ds ftpd[20081]: connection from ip-90-202.evc.net
>Aug 19 06:37:35 ds ftpd[20081]: ANONYMOUS FTP LOGIN FROM
>ip-90-202.evc.net, guesthere.com
>Aug 19 06:37:36 ds ftpd[20081]: mkdir 010819061100p

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