MailGuard Blog

MailGuard has intercepted a phishing email warning users that their Office 365 registration needs to be verified within 48 hours, or else risk having their account suspended.  With millions of businesses and individuals using (Microsoft) Office 365 globally for their daily tasks and communications, it is highly likely that a lack of vigilance will result in cybercriminals stealing credentials for later criminal use, such as identity theft, BEC, sold on the dark web and more.  

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No business is immune from a cyber-attack, as is the case with this recent phishing scam intercepted by MailGuard. Scammers are targeting victims with an email titled, ‘Warning: Your email password has expired’. Recipients of this email are advised to be cautious before clicking on any links. Cybercriminals use social engineering tactics such as phishing to trick innocent victims into providing them with data to further their criminal activity.  

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Cybercriminals have targeted unsuspecting victims with a phishing email purporting to be from the Human Resources Department of their respective employer. The scam uses multiple methods of redirection to the phishing site, with the use of highly accurate Microsoft branding, including Microsoft Word, Microsoft Teams and SharePoint. With over 190 million people across the globe using SharePoint alone, users need to remain extremely vigilant and think twice before downloading any unfamiliar files or clicking on suspicious links, as this could allow threat actors to steal your credentials and potentially install malware, leading to a myriad of other criminal activity.  

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The latest phishing attack intercepted by MailGuard begins with a scam email purporting to be via popular collaboration tool, SharePoint. As workforces become more remote, it is common for employees to send confidential business documents to one another, and with over 200 million users of Microsoft SharePoint, there is a high likelihood unsuspecting victims will fall for the scam.  

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MailGuard has successfully identified and blocked a highly-sophisticated spam campaign which uses Microsoft Word files to infect computers with crypto ransomware.

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MailGuard have recently identified and blocked a large scale run of email spam containing Word files infected by macro malware.

We can confirm at the time of report, no major antivirus vendors were detecting these documents as containing a macro virus. Whilst macro malware scams have existed for years, we have identified a large increase in their distribution recently.

Here are screenshots of some of the unique email variations we have observed:

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