Most of us carry around a mobile phone and, for the most part, out of office hours we will use our mobiles to read e-mails. By now I am sure you are wondering what other methods could be used and what does a canary have to do with it? Of course there are other options you could look at, as discussed in a previous OSINT blog post, such as reviewing the electoral roll.
#Canary mail alert trial
The amount of data points in the photo may not be sufficient and require much trial and error to identify a rough location.
Imagery analysis of photos posted by that individual could be conducted. In another example scenario, imagine you are conducting open-source intelligence and attempting to geolocate an individual. Another intuitive way.Īs previously mentioned, there are multiple ways of implementing a canary token. In the example of a canary token this can be attached to a folder purposely set up or a file placed in a location that, when opened, sends the alert. What if the breach has already occurred and it has been missed? Many of us will be familiar with a honeypot in the sense of a setup dedicated to deception. Protection of assets is key and blue teams take extensive measures to identify a breach. A token configured to send an alert when a MS SQL Server database is accessed could be one such input. However, SIEM’s require a data input source, and this is where a canary could come in use.
#Canary mail alert software
In a Security Operations Centre (SOC), solutions such as security information and event management (SIEM) software are deployed with filtering to help to identify activity outside of the baseline. Looking at defensive cyber security teams, there are multiple methods of detecting malign activity that blue teams take within their networks. Equally the URL in the e-mail could have a canary token in to track the number of clicks.Ī canary can be used by both threat actors as well as defensive cyber security teams, such as the example above. A simple example requiring little effort on the part of the I.T. administrator to evaluate staff training. Alternatively, it could be an internal test allowing the I.T. In this example the redirect itself could be the canary being sent to an adversary. You assume that the company has just put an extra security measure in place. After this you are redirected to a legitimate internal page. You click the link and are taken to a page where you enter your e-mail credentials. The e-mail itself is clean but it includes a link that looks legitimate. In a previous blog post, phishing methods are discussed in depth, but for now we will use the example of a phishing e-mail.Īs an employee of a large corporation you receive an e-mail. This list is by no means exhaustive and the ways in which this can be implemented is at the mercy of the creator’s imagination. Methods of deploymentĪ canary token can be placed to understand various actions a user has taken - visiting a URL, requesting a hostname, opening a file, viewing an image, or opening an e-mail. We will explore the reasons in this blog, but first we will look at the deployment methods. There are various ways of deploying a canary to alert a user and different reasons for doing this. What ways can a canary alert help cyber security?
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