This is also extremely convenient for attackers because they can send the payload without ever having to verify if the targeted network is allowing an inbound SMTP or testing firewalls/proxies.Ībnormal can stop this attack due to the unusual sender domain where it does not match any domains found in body links. Not only does this bypass traditional mail filters, but it also goes undetected by any existing web proxy and firewall controls. This is a sophisticated attack because, by using Dropbox Transfer to send files, it is not necessary to spoof headers, as the sender name will come from the legitimate Dropbox domain. And even for vigilant email recipients who check the sender address, an automated message from the domain does look innocuous enough to at least click on the links provided.
#DROPBOX VERIFY EMAIL DOWNLOAD#
There is a sense of urgency in the message, which states, "Heads up, this transfer expires in 4 days on June 10, 2020.” It appears that if the recipient doesn't download the file within the given timeframe, the file will expire and they might assume that the opportunity to receive relief funding will be missed or delayed. Why the Dropbox Transfer Attack is Effective From there, this account takeover can lead to data or financial loss for the organization, and the account itself can be used to send additional attacks on employees, customers, or partners. The moment they do so, their Microsoft credentials on all accounts are compromised, providing access to Outlook, SharePoint, OneDrive, Teams, and other Microsoft applications. In order to access the fake document, the user must input their Office 365 credentials. This is where the intent is revealed, which is to gain access to the user's Microsoft credentials. In the second step, the landing page contains an O365 image with a button to “Access Document”. First, the recipient must click the link provided in the email, which leads to a standard Dropbox transfer landing page with the enablement to download the file.Īfter clicking on the download button, the page is redirected to a phishing landing page. The body contains a link to the file “COVID-19-Relief-Payment.PDF” with information about the size of the file, a brief description of the file, and the expiration date.
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The email itself is an automated message from the sender “ which is an official Dropbox domain. In this attack, threat actors use a Dropbox link and landing page to do so. Since applicants are expecting email correspondence, this provides attackers with a unique opportunity to impersonate legitimate authorities and extract sensitive information from customers. This allows attackers to exploit current efforts by the government, particularly since applicants to these funds typically have to provide documents to prove their eligibility.
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Think of it like insurance- you don’t wait for something to happen and then get insurance, you already have it in place just in case.As the COVID-19 pandemic continues, governments worldwide are providing relief funds for small business owners impacted by lockdowns and closures.
#DROPBOX VERIFY EMAIL PASSWORD#
You can learn more about safe passwords and password managers and keep them secure via Norton’s Identity Safe for free. Since passwords are a bit tricky to manage, Norton can help.
#DROPBOX VERIFY EMAIL VERIFICATION#
That’s why Dropbox and Norton strongly recommend turning on two-step verification for Dropbox and other sites that support it. Even if a website or app has strong security controls, your online accounts can become vulnerable to attack if you reuse passwords or have weak passwords. Be sure that each password is unique to each site.
![dropbox verify email dropbox verify email](https://media.vocativ.com/photos/2016/09/dropboxsg2325228282.png)
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If you do this practice, change your passwords on any sites that use the same email and password combination immediately. As a result, data obtained from one website breach will be used across other websites, in hopes of email and password reuse, granting the criminal access to additional accounts. A good amount of users tend to use the same password across multiple sites.