Phishing Attacks from Spoofed Domains

By:  |  Category: Blog, Security Thursday, April 13th, 2017  |  No Comments
Phishing Attacks

Earlier this week, Proofpoint raised the red flag on a critical 0-day threat they are calling “CVE-2017-0199,” located in Microsoft Word that allows booby-trapped Dridex phishing attacks to be sent to millions of your employees claiming to be a PDF sent to them by their company scanner.

This attack is extremely malicious because it bypasses exploit mitigations built into Windows, doesn’t require your employee to enable macros, works against Windows 10 (the most secure OS yet) and will corrupt most or all Windows versions of Word.

Spoofed Email Domains Are Easy to Miss

Proofpoint’s technical analysis said:

“Emails in this campaign used an attached Microsoft Word RTF (Rich Text Format) document. Messages purported to be from “”. [device] may be “copier”, “documents”, “noreply”, “no-reply”, or “scanner”. The subject line in all cases read “Scan Data” and included attachments named “Scan_123456.doc” or “Scan_123456.pdf”, where “123456” was replaced with random digits. Note that while this campaign does not rely on sophisticated social engineering, the spoofed email domains and common practice of emailing digitized versions of documents make the lures fairly convincing

What to Do About It:

  1. Patch and Update to Avoid Phishing Attacks

On Tuesday Microsoft released its regular batch of security patches – including a fix for this nasty Office zero-day vulnerability CVE-2017-0199. Turns out that this wasn’t the only thing needed patching. An elevation of privilege vulnerability in Internet Explorer (CVE-2017-0210) that would allow an attacker to convince a user to visit a compromised website was also fixed.

  1. No Update?

Here is a quick fix to prevent this exploit from working by adding the following to your Windows registry: Software\Microsoft\Office\15.0\Word\Security\FileBlock\RtfFiles to 2 and OpenInProtectedView to 0.

  1. Can Your Domain Be Spoofed?

Did you know that one of the first things hackers try is to see if they can spoof the email address of someone in your own domain? Now they can launch a spear phishing attack on your organization.

Let EnhancedTECH help protect your network. We can determine your company’s vulnerability rusk and do a risk assessment. Call us for a complimentary IT Security consultation. 714-970-9330

–Samantha

Source Image: https://www.pexels.com/photo/black-and-white-cafeteria-chat-chatting-52576/

Samantha Keller
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