Citadel is a browser agent that detects malware and shadow IT by analyzing and logging security events in a privacy-respecting way
Citadel browser agent Extension
Citadel can download lists of known bad sites and URLs and block access to them.
The following browser security events are detected and reported:
• IP or URL is blacklisted
• the browser has blocked the navigation to the site
• user is using unencrypted protocols (e.g. FTP or HTTP)
• user is using non-standard port numbers (i.e. not 443)
• user is using URL with username or password in the URL
• user has downloaded a file
• the user is warned that the downloaded file is dangerous
• user has accepted downloading of dangerous file
• domain name does not match the SSL certificate
• SSL certificate authority invalid (e.g. self-signed or expired certificate)
• SSL protocol error
.. and many other security-sensitive errors and warnings.
It also reports on usage statistics of applications by counting visits and clicks on sites. These usage reports can be aggregated in your SIEM / EDR and used to detect unexpected applications or un-used licences.
Events and reports are written as syslog entries with a relevant level, and can then be consumed by a SIEM or EDR. Citadel comes pre-integrated with the Wazuh, the open source XDR.
Source Manifest.json
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