ctguard is a small host-based intrusion detection system (hids) inspired by ossec.
Its current features are:
- rule based log analysis
- detection of filesystem object changes/additions/deletions
- intervening with custom actions
To build ctguard, a c++17 compliant compiler and standard library is needed, e.g:
- GCC 7 and up
- Clang 5.0 and up
Also sqlite3 develepment headers are needed, on Debian supplied by the package libsqlite3-dev.
To build the manpages, asciidoctor is required.
The simplest way to install ctguard on Debian (and derivates) is to build a package, by using the command debuild -us -uc from the package devscripts.
This generates a Debian package in the parent directory.
Simply install it with dpkg -i ../ctguard_*.deb.
ctguard can then be later deinstalled by apt purge ctguard.
The first step is to build ctguard.
Run make USERMODE=1 -j binaries in the ctguard directory as normal user.
Then install run as root or via sudo make full-install.
Finally enable and start ctguard: systemctl enable ctguard-* and systemctl start ctguard-*.
To deinstall ctguard first stop its services: systemctl stop ctguard-*.
Now delete the remaining files: rm -Rf /var/lib/ctguard /etc/ctguard /usr/sbin/ctguard-* /lib/systemd/system/ctguard-*.
ctguard is licensed under the MIT License:
MIT License
Copyright © 2018 Christian Göttsche
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
ctguard uses three third-party libraries:
- dtl: diff template library licensed under the "BSD License"
- cereal: serialization library licensed under the "BSD License"
- sha2 by Aaron D. Gifford: a sha2 implementation licensed under the "BSD License"