/etc/sagan-rules/vsftpd.rules is in sagan-rules 10212010-r1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 | # Sagan vsftpd.rules
# Copyright (c) 2009-2010, Softwink, Inc.
# All rights reserved.
#
# Please submit any custom rules or ideas to sagan-submit@softwink.com 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 21 (msg:"[VSFTPD] Session opened"; content: "CONNECT"; classtype: not-suspicious; program: vsftpd; reference: url,wiki.softwink.com/bin/view/Main/5000194; sid: 5000194; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 21 (msg:"[VSFTPD] Authentication successful"; content: "OK LOGIN"; classtype: successful-user; program: vsftpd; reference: url,wiki.softwink.com/bin/view/Main/5000195; sid: 5000195; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 21 (msg:"[VSFTPD] Login failed"; content: "FAIL LOGIN"; classtype: unsuccessful-user; program: vsftpd; reference: url,wiki.softwink.com/bin/view/Main/5000196; sid: 5000196; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 21 (msg:"[VSFTPD] File uploaded"; content: "OK UPLOAD"; classtype: not-suspicious; program: vsftpd; reference: url,wiki.softwink.com/bin/view/Main/5000197; sid: 5000197; rev:1;)
alert tcp $EXTERNAL_NET any -> $HOME_NET 21 (msg: "[FTPD] User logged into an disabled account"; content: "OK LOGIN"; pcre: "/^apache$|^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.softwink.com/bin/view/Main/5000415; program: sshd; sid: 5000415; rev:1;)
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