Avoid getting scammed by emails claiming your mail storage has been exceeded

Also Known As: possible malware infections
Damage level: Medium

What is the "you have used up your mail storage" email scam?

"You have used up your mail storage" is the name of an email spam campaign. These letters claim that the recipients' email accounts will be blocked due to exceeded storage limits - unless they are upgraded. The goal of this spam mail is to push a phishing website that is disguised as an email account sign-in webpage.

You have used up your mail storage email spam campaign

"You have used up your mail storage" email scam overview

The "you have used up your mail storage" scam letters inform recipients that they will not receive any emails because their accounts have reached the storage limit. To continue receiving messages, recipients are instructed to upgrade their mail accounts.

The link presented in these spam letters - redirects to a phishing website, which is disguised as an email account sign-in page. By attempting to log in through this site, users will inadvertently disclose their email passwords to the scammers behind this spam campaign.

Email accounts are targeted due to being associated with (e.g., used to register) other platforms, services, etc. Therefore, through stolen emails, control might be gained over the content connected to them.

For example, communication accounts (e.g., emails, social media, messengers, etc.) can be used to spread malware by sharing malicious files or links. Scammers can also use these platforms to ask the contacts/friends for loans - under the guise of genuine owners.

Finance-related accounts (e.g., online banking, digital wallets, e-commerce, etc.) can be used to make unauthorized transactions and/or online purchases.

To summarize, by trusting phishing spam emails, users can experience severe privacy issues, financial losses, and even identity theft.

Threat Summary:
Name you have used up your mail storage Email Scam
Threat Type Phishing, Scam, Social Engineering, Fraud
Fake Claim Scam letters claim that the recipient will not receive emails, until they upgrade their email account's storage space.
Related Domains qxxcifwcvh.web[.]app
Detection Names (qxxcifwcvh.web[.]app) N/A (VirusTotal)
Symptoms Unauthorized online purchases, changed online account passwords, identity theft, illegal access of the computer.
Distribution methods Deceptive emails, rogue online pop-up ads, search engine poisoning techniques, misspelled domains.
Damage Loss of sensitive private information, monetary loss, identity theft.
Malware Removal (Windows)

To eliminate possible malware infections, scan your computer with legitimate antivirus software. Our security researchers recommend using Combo Cleaner.
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Spam campaigns in general

"Office 365 Email Scam", "Your email account has been reported for spam abuse", and "Network Solutions Email Scam" are a couple examples of phishing emails.

This mail can use a broad range of disguises and target a variety of information. Aside from phishing and other scams, spam campaigns are also used to proliferate malware (e.g., ransomware, trojans, cryptocurrency miners, etc.). Due to how widespread spam mail is, exercising caution with incoming emails and messages is strongly advised.

How do spam campaigns infect computers?

Spam emails can have infectious files attached to them, or they can contain download links of such files. Virulent files can be executables (.exe, .run, etc.), archives (RAR, ZIP, etc.), Microsoft Office and PDF documents, JavaScript, and so on. When they are opened - malware download/installation is initiated.

For example, Microsoft Office documents cause infections by executing malicious macro commands. This process happens immediately when documents are opened in pre-2010 Microsoft Office versions. Later versions have "Protected View" mode, which prevents this; instead, users can manually enable macros (i.e., editing/content).

It is noteworthy that malicious documents commonly contain messages intended to deceive users into allowing macro commands.

How to avoid installation of malware?

Suspicious and irrelevant emails should not be opened. It is expressly advised against opening/clicking attachments and links found in these letters, as they can cause system infections. It is recommended to use Microsoft Office versions released after 2010.

Malware is also spread via dubious download channels (e.g., Peer-to-Peer sharing networks, unofficial and freeware websites, etc.), illegal activation tools ("cracks"), and fake updates. Hence, it is crucial to download from official/verified sources and activate/update programs with tools provided by legitimate developers.

It is paramount to have a reputable anti-virus installed and updated. This software has to be used to perform regular system scans and to remove threats. If you've already opened malicious attachments, we recommend running a scan with Combo Cleaner Antivirus for Windows to automatically eliminate infiltrated malware.

Text presented in the "you have used up your mail storage" scam email letter:

Subject: Your Email Storage is Filled Up


Greetings ********


We write to inform you that you have used up your mail storage
limit of 99.0 gigabytes as defined by your system Admin.


You will be blocked from receiving and mailings E-mails
if not upgraded today.


Kindly Add more storage with the link below for immediate upgrade to receive
additional storage space.




******** Service Administrator

Screenshot of the phishing website promoted through the "you have used up your mail storage" spam campaign:

You have used up your mail storage scam email promoted phishing website

Instant automatic malware removal: Manual threat removal might be a lengthy and complicated process that requires advanced computer skills. Combo Cleaner is a professional automatic malware removal tool that is recommended to get rid of malware. Download it by clicking the button below:
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How to remove malware manually?

Manual malware removal is a complicated task - usually it is best to allow antivirus or anti-malware programs to do this automatically. To remove this malware we recommend using Combo Cleaner Antivirus for Windows.

If you wish to remove malware manually, the first step is to identify the name of the malware that you are trying to remove. Here is an example of a suspicious program running on a user's computer:

Malware process running in the Task Manager

If you checked the list of programs running on your computer, for example, using task manager, and identified a program that looks suspicious, you should continue with these steps:

manual malware removal step 1Download a program called Autoruns. This program shows auto-start applications, Registry, and file system locations:

Autoruns application appearance

manual malware removal step 2Restart your computer into Safe Mode:

Windows XP and Windows 7 users: Start your computer in Safe Mode. Click Start, click Shut Down, click Restart, click OK. During your computer start process, press the F8 key on your keyboard multiple times until you see the Windows Advanced Option menu, and then select Safe Mode with Networking from the list.

Run Windows 7 or Windows XP in Safe Mode with Networking

Video showing how to start Windows 7 in "Safe Mode with Networking":

Windows 8 users: Start Windows 8 is Safe Mode with Networking - Go to Windows 8 Start Screen, type Advanced, in the search results select Settings. Click Advanced startup options, in the opened "General PC Settings" window, select Advanced startup.

Click the "Restart now" button. Your computer will now restart into the "Advanced Startup options menu". Click the "Troubleshoot" button, and then click the "Advanced options" button. In the advanced option screen, click "Startup settings".

Click the "Restart" button. Your PC will restart into the Startup Settings screen. Press F5 to boot in Safe Mode with Networking.

Run Windows 8 in Safe Mode with Networking

Video showing how to start Windows 8 in "Safe Mode with Networking":

Windows 10 users: Click the Windows logo and select the Power icon. In the opened menu click "Restart" while holding "Shift" button on your keyboard. In the "choose an option" window click on the "Troubleshoot", next select "Advanced options".

In the advanced options menu select "Startup Settings" and click on the "Restart" button. In the following window you should click the "F5" button on your keyboard. This will restart your operating system in safe mode with networking.

Run Windows 10 in Safe Mode with Networking

Video showing how to start Windows 10 in "Safe Mode with Networking":

manual malware removal step 3Extract the downloaded archive and run the Autoruns.exe file.

Extract Autoruns.zip archive and run Autoruns.exe application

manual malware removal step 4In the Autoruns application, click "Options" at the top and uncheck "Hide Empty Locations" and "Hide Windows Entries" options. After this procedure, click the "Refresh" icon.

Refresh Autoruns application results

manual malware removal step 5Check the list provided by the Autoruns application and locate the malware file that you want to eliminate.

You should write down its full path and name. Note that some malware hides process names under legitimate Windows process names. At this stage, it is very important to avoid removing system files. After you locate the suspicious program you wish to remove, right click your mouse over its name and choose "Delete".

Delete malware in Autoruns

After removing the malware through the Autoruns application (this ensures that the malware will not run automatically on the next system startup), you should search for the malware name on your computer. Be sure to enable hidden files and folders before proceeding. If you find the filename of the malware, be sure to remove it.

Search for malware and delete it

Reboot your computer in normal mode. Following these steps should remove any malware from your computer. Note that manual threat removal requires advanced computer skills. If you do not have these skills, leave malware removal to antivirus and anti-malware programs.

These steps might not work with advanced malware infections. As always it is best to prevent infection than try to remove malware later. To keep your computer safe, install the latest operating system updates and use antivirus software. To be sure your computer is free of malware infections, we recommend scanning it with Combo Cleaner Antivirus for Windows.

Frequently Asked Questions (FAQ)

Why did I receive this email?

Spam emails are sent in large-scale operations by the thousands. Therefore, the letters are impersonal, and many users receive them.

I have provided my personal information when tricked by this spam email, what should I do?

If you have provided account credentials - change the passwords of all endangered accounts and contact the official support. If the disclosed information was of a different personal nature (e.g., ID or credit card details, etc.) - immediately contact corresponding authorities.

I have read a spam email but didn't open the attachment, is my computer infected?

No, opening a spam email is harmless. The attachments or links present in such emails initiate infection chains when they are opened.

I have downloaded and opened a file attached to a spam email, is my computer infected?

If the file was an executable, then most certainly - yes. However, an infection might not have been triggered if it was a document (e.g., .doc, .pdf, etc.), as such files tend to require additional actions (e.g., macro commands enablement).

Will Combo Cleaner remove malware infections present in email attachments?

Yes, Combo Cleaner will detect and eliminate almost all known malware infections. It is noteworthy that sophisticated malicious software tends to hide deep within the system. Therefore, it is crucial to perform a full system scan.

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About the author:

Tomas Meskauskas

Tomas Meskauskas - expert security researcher, professional malware analyst.

I am passionate about computer security and technology. I have an experience of over 10 years working in various companies related to computer technical issue solving and Internet security. I have been working as an author and editor for pcrisk.com since 2010. Follow me on Twitter and LinkedIn to stay informed about the latest online security threats. Contact Tomas Meskauskas.

PCrisk security portal is brought by a company RCS LT. Joined forces of security researchers help educate computer users about the latest online security threats. More information about the company RCS LT.

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Malware activity

Global malware activity level today:

Medium threat activity

Increased attack rate of infections detected within the last 24 hours.

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