Mark, before going too nuts with trying to locate how they got in, let me ask, are you running a webserver on this server and any websites?
take a look in /tmp, /var/tmp and do a find for any directories which have 777 perms like uucppublic in /var. if so, are they owned by the web user? I have seen many IRC bots installed from poorly written php and perl programs into /tmp and such which are then run via the same security holes that allowed them to be installed. these programs can only be run on high port numbers and are owned by the webserver owner. 99 of 100 are usually IRC bots as well. another thing to look for is if they installed a cron job for the web user which re-downloads the files if they are deleted. you can disable cron for www and is reccomended. I have seen these tactics more and more lately and the amount of bad 3rd party code used by my users doesnt help at all. HTH, Bill -- Bill Desjardins d: 305.205.8644 EtherneXt.com - Managed Colocation & Bandwidth [EMAIL PROTECTED] Phone: 305.373.5960 Quoting Mark Jayson Alvarez <[EMAIL PROTECTED]>:
Good Day! I think we have a serious problem. One of our old server running FreeBSD 4.9 have been compromised and is now connected to an ircd server.. 195.204.1.132.6667 ESTABLISHED However, we still haven't brought the server down in an attempt to track the intruder down. Right now we are clueless as to what we need to do.. Most of our servers are running legacy operating systems(old versions mostly freebsd) Also, that particular server is running - ProFTPD Version 1.2.4 which someone have suggested to have a known vulnerability.. I really need all the help I can get as the administration of those servers where just transferred to us by former admins. The server is used for ftp. Thanks.. __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-security To unsubscribe, send any mail to "[EMAIL PROTECTED]"
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