For example, an instance of Doppelganger domain for is (notice the missing dot). It is a domain which is missing "." (dot) in a domain name. Doppelganger domain - A doppelganger domain is similar to typosquatting domain.There is a large list of typosquatting techniques. Such domain name appears identical to the original one. For instance, given, one example of typosquatting domain might be Typosquatting domain - Typosquatting is a technique of registering domain names which look similar to some legitimate domain name.Usually, an adversary creates a new domain that at least look somehow legitimate: Since there are countless websites created every day, it would be pretty hard to check them all. Domainsįirstly, let's look at the general scheme of finding such domains/websites. I will dedicate the whole post for explaining details of attachment-based spear phishing, including macro creation and some Powershell tricks. By no means you should expect perfect process for this problem - instead, we are trying to use heuristics to find a significant amount of badness without least amount of false positives. Please note that if you want to get some results from these techniques, you should implement continuous processes regarding automation instead then one-time search. These can the result of brand damage since the phishing site is associated with your brand.īy proactively detecting these sites, you can be prepared to face phishing waves inside your organization and notify your customers about malicious actions hopefully before they happen. Websites mimicking product sites to get valid credentials from your customers.Websites mimicking intranet sites to get valid internal network credentials. In this post, I want to focus on the latter category and describe, how you can proactively find domains that try to mimic the websites of some particular organization (read yours). At that time, it is likely that other employees have already been compromised. In other words, incident responders wait until some tech-savvy employee/customer reports the suspicious phishing site, suspicious e-mail, or start seeing suspicious traffic in SIEM. When dealing with incident response, the general workflow in analyzing phishing is in most cases reactive. Other channels include Whatsapp, Facebook Messenger, etc. However, the pretext is crafted in a way that it contains URL to the malicious domain. Generally, e-mail is a prominent delivery channel for this type of phishing as well. Delivery of such website (with pretext) to the user depends on the adversary "audience". The cloned website is delivered to the victim using different channels. Adversary then gathers the credentials and uses it to further (malicious) actions. Steal credentials for online services - Adversary clones some high-value website (usually login form of some web services) and convince the user to enter her credentials.The attachment is usually one of Office file formats in combination with VBScript/WScript/Powershell and has pretty high success in evading anti-virus (when done correctly). Adversary then waits until the victim opens the attachment and connects to the C2 server. Gain initial access to network - Adversary sends spear phishing e-mail with a well-crafted pretext and malicious attachment. Generally, phishing tries to accomplish two primary goals: Phishing is still one of the most prominent ways of how cyber adversaries monetize their actions.
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