From the course: CompTIA CySA+ (CS0-002) Cert Prep: 5 Security Operations and Monitoring
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Analyzing email headers
From the course: CompTIA CySA+ (CS0-002) Cert Prep: 5 Security Operations and Monitoring
Analyzing email headers
- When we looked at DKIM, SPF, and DMARC. We peered inside the headers of an email message to see them at work. Because email is the most common threat factor today, email header analysis is a very important skill for cyber security analysts. Lets take a deeper dive. Here's the email message that we looked at earlier. I'm in my Gmail account, and when I look at this message I see a familiar format. I see that the message is to me, its from Steve Moser, it has a subject of thanks for being a LinkedIn author. And then we see the text and contents of the message. This is what all of us are use to seeing when we open an email, but this is only the user facing portion of an email message. Underneath the covers, there's a whole lot of technical information contained in the headers. Lets go ahead and open up those email headers. I'm going to click these more dots here, and then click the show original option. This brings up…