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proftpd.rules
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proftpd.rules
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# Sagan proftpd.rules
# Copyright (c) 2009-2013, Quadrant Information Security <www.quadrantsec.com>
# All rights reserved.
#
# Please submit any custom rules or ideas to [email protected] or the sagan-sigs mailing list
#
#*************************************************************
# Redistribution and use in source and binary forms, with or without modification, are permitted provided that the
# following conditions are met:
#
# * Redistributions of source code must retain the above copyright notice, this list of conditions and the following
# disclaimer.
# * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the
# following disclaimer in the documentation and/or other materials provided with the distribution.
# * Neither the name of the nor the names of its contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
# SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
# USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
#*************************************************************
#alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Session opened"; content: "FTP session opened"; classtype: not-suspicious; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000078; sid: 5000078; rev:2;)
#alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Session closed"; content: "FTP session closed"; classtype: not-suspicious; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000079; sid: 5000079; rev:2;)
#alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Attempt to login as a non-existent user"; content: "no such user"; classtype: unsuccessful-user; parse_src_ip: 1; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000080; sid: 5000080; rev:3;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Login failed accessing the FTP server"; pcre: "/Incorrect password|Login failed/i"; classtype: unsuccessful-user; parse_src_ip: 2; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000081; sid: 5000081; rev:3;)
#alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Authentication success"; content: "Login successful"; classtype: successful-user; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000082; sid: 5000082; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Connection refused by TCP Wrappers"; content: "refused connect from"; classtype: tcp-connection; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000083; sid: 5000083; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Small PassivePorts range in config file"; content: "unable to find open port in PassivePorts range"; classtype: program-error; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000084; sid: 5000084; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Attempt to bypass firewall - cannot keep state of FTP traffic"; content: "Refused PORT"; classtype: suspicious-traffic; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000085; sid: 5000085; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Maximum login attempts reached [DoS?]"; content: "Maximum login attempts"; classtype: successful-dos; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000086; sid: 5000086; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Host name or host address mismatch"; pcre: "/name mismatch|address mismatch/i"; classtype: suspicious-traffic; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000087; sid: 5000087; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Reverse lookup failure; content: "can't verify hostname"; classtype: suspicious-traffic; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000088; sid: 5000088; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Remote host connected to FTP server"; content: "connect from"; classtype: not-suspicious; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000089; sid: 5000089; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Remote host disconnected due to inactivity"; content: "FTP no transfer timeout, disconnected"; classtype: not-suspicious; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000090; sid: 5000090; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Remote host disconnected due to login time out" ;content: "FTP login timed out"; classtype: not-suspicious; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000091; sid: 5000091; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Remote host disconnected due to time out" ;content: "FTP session idle timeout"; classtype: not-suspicious; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000374; sid: 5000374; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Data transfer stall timeout" ;content: "Data transfer stall timeout"; classtype: not-suspicious; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000092; sid: 5000092; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] terminated [crash]" ; content: "ProFTPD terminating"; content: "signal 11"; classtype: program-error; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000093; sid: 5000093; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg:"[PROFTPD] Unable to bind to address" ; content: "listen"; content: "failed in"; classtype: program-error; program: proftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000094; sid:5000094; rev:2;)
alert tcp $EXTERNAL_NET any -> $HOME_NET $FTP_PORT (msg: "[PROFTPD] User logged into an disabled account"; content: "Login successful"; pcre: "/^apache$|^mysql$|^www$|^nobody$|^nogroup$|^portmap$|^named$|^rpc$|^mail$|^ftp$|^shutdown$|^halt$|^daemon$|^bin$|^postfix$|^shell$|^info$|^guest$|^psql$|^user$|^users$|^console$|^uucp$|^lp$|^sync$|^sshd$|^cdrom$|^ossec$|^sagan$/"; classtype: successful-user; reference: url,wiki.quadrantsec.com/bin/view/Main/5000413; program: sshd; sid: 5000413; rev:2;)