Security Incidents mailing list archives

Re: ftp server compromised


From: David Hodges <dhodges () outermost com>
Date: Wed, 12 Feb 2003 22:33:18 -0500

This happened to us through a carelessly-left-open anonymous account. From your logs, it looks like the same m.o. as the ones who got us. We closed the account and shutdown ftp for a few days, which stopped the activity.

I was able to delete the files by using DOS (i.e. cmd.exe) and using the 8.3 filenames, not the long filenames (try DIR/X to see the short filenames. ). You can use DEL/S to delete a folder at a time.

David Hodges
Outermost Software

At 01:20 AM 2/13/2003 +0000, rbelchez () show-net net wrote:


Dear All,

Pls advise..also apologize if this problem have already been posted here
before.)

huge amount of compressed movies have been uploaded on our FTP server
w/out our consent. I tried to delete via windows explorer and DOS but the
system is just giving error and files cannot be deleted.

Kindly please advise, how to manualy delete this files, and also to
protect our server from this to happen again. As per the IIS logs, he was
able to login via anonymous and uploaded files. I know I have disabled
the anonymous on the FTP but for some reason the hacker seems to have
workaround on this. (copied here is the server logs .. pls advise...)

00:35:41 (IP withheld) [49]USER anonymous 331
00:35:41 (IP withheld) [49]PASS anonymous () on the net 230
00:36:39 (IP withheld)[50]USER anonymous 331
00:36:39 (IP withheld)[50]PASS anonymous () on the net 230
00:36:44 (IP withheld)[50]
sent /webmail+/++prn0+++++++/++prn0++++++++/++++con2+++++/++The+We@sel+3
,74069437262937E+35++/Filled+By/xvid-mnlght-subs-nl-aen.rar 550
00:36:49 (IP withheld) [50]created xvid-mnlght-subs-nl-aen.rar 226
00:36:59 (IP withheld)[51]USER anonymous 331
00:37:00 (IP withheld)[51]PASS anonymous () on the net 230
00:39:10 (IP withheld)[50]
sent /webmail+/++prn0+++++++/++prn0++++++++/++++con2+++++/++The+We@sel+3
,74069437262937E+35++/Filled+By/--+==+[+++2oo.ooo++++]+==+-- 550
00:39:23 (IP withheld)[50]created --+==+[+++2oo.ooo++++]+==+-- 226
00:51:49 (IP withheld)[49]closed - 421



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