File: vsftpd.rules

package info (click to toggle)
sagan-rules 1:20170725-1
  • links: PTS
  • area: main
  • in suites: bullseye, buster, sid
  • size: 3,460 kB
  • sloc: makefile: 5
file content (39 lines) | stat: -rw-r--r-- 4,343 bytes parent folder | download | duplicates (3)
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
33
34
35
36
37
38
39
# Sagan vsftpd.rules
# Copyright (c) 2009-2017, Quadrant Information Security <www.quadrantsec.com>
# All rights reserved.
#
# Please submit any custom rules or ideas to sagan-submit@quadrantsec.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 any $EXTERNAL_NET any -> $HOME_NET any (msg:"[VSFTPD] Session opened"; content: "CONNECT"; default_proto:tcp; default_dst_port: $FTP_PORT; classtype: not-suspicious; program: vsftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000194; sid: 5000194; rev:3;)
#alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[VSFTPD] Authentication successful"; content: "OK LOGIN"; default_proto:tcp; default_dst_port: $FTP_PORT; classtype: successful-user; program: vsftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000195; sid: 5000195; rev:3;)
drop any $EXTERNAL_NET any -> $HOME_NET any (msg:"[VSFTPD] Login failed - Brute force [5/5]"; content: "FAIL LOGIN"; default_proto:tcp; default_dst_port: $FTP_PORT; classtype: unsuccessful-user; program: vsftpd; after: track by_src, count 5, seconds 300; threshold: type limit, track by_src, count 5, seconds 300; fwsam: src, 1 day; xbits: set,brute_force,21600; reference: url,wiki.quadrantsec.com/bin/view/Main/5000196; sid: 5000196; rev:6;)
#alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[VSFTPD] Login failed"; content: "FAIL LOGIN"; default_proto:tcp; default_dst_port: $FTP_PORT; classtype: unsuccessful-user; program: vsftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5001530; sid: 5001530; rev:3;)
#alert any $EXTERNAL_NET any -> $HOME_NET any (msg:"[VSFTPD] File uploaded"; content: "OK UPLOAD"; default_proto:tcp; default_dst_port: $FTP_PORT; classtype: not-suspicious; program: vsftpd; reference: url,wiki.quadrantsec.com/bin/view/Main/5000197; sid: 5000197; rev:3;)
alert any $EXTERNAL_NET any -> $HOME_NET any (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 /"; default_proto:tcp; default_dst_port: $FTP_PORT; classtype: successful-user; reference: url,wiki.quadrantsec.com/bin/view/Main/5000415; program: sshd; sid: 5000415; rev:4;)

# Rule by W. E Restrepo (werestrepo@quadrantsec.com) - 08/30/2016

alert any $EXTERNAL_NET any -> $HOME_NET any (msg: "[VSFTPD] FTPCHK3 file accessed by user"; content: "ftpchk3"; pcre: "/CHMOD|DELE|STOR/i"; program: vsftpd; default_proto:tcp; default_dst_port: $FTP_PORT; classtype: suspicious-traffic; reference: url,blog.ftptoday.com/ftp-password-stealing-malware; reference: url,wiki.quadrantsec.com/bin/view/Main/5002953; sid:5002953; rev:4;)