AppRiver Blog

Something Wicked This Way Comes – To Your Inbox

Hackers are smart – and only getting smarter. They are continually honing their attacks and searching for the weakest link – and oftentimes that is a company’s employees.

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HMRC-themed emails carry Trickbot infection

A cybercrime group is currently targeting businesses in the UK with malware-laden emails containing the banking Trojan known as Trickbot.

In the past years, several malware families have been seen heavily targeting the UK in attempts to spread banking Trojans looking to gain access to business and personal accounts.

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BEC Attacks Evolving - Phishing via XPS Files

We've seen it time after time, malicious actors routinely attempt to confuse recipients of messages with obscure or lesser-utilized file extensions.

Over the past month, some phishing attempts using xps files instead of the typical pdf or doc/docx formats have been captured by our filters.  The xps file format is...

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Think Your Business is Safe From Hackers?

Hackers are always on the lookout for easy targets. Make sure your business doesn't become one.

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AppRiver Live: Hackers are getting personal

All your eggs in the Office 365 basket? Find out how layered security can save your bacon.

Check out this week's AppRiver Live replay. AppRiver Security Analyst David Pickett and Marketing Director Jim McClellan discuss the latest tactics cybercriminals are using to gain access to your email (and unleash malicious, and...

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Warning! Trojan Droppers Exploiting Symbolic Link (.SLK) Files

Trojan Droppers Exploiting Symbolic Link Files

Malicious actors routinely attempt to confuse recipients of messages with obscure file extensions to load malicious files on the victims machine.

For most users the .slk file is recognized in Microsoft Office software as an Excel file. However, as detailed here, it also is...

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Attackers Leverage Stolen Email Credentials In Malware Attacks

Throughout 2017 we observed a major increase in phishing efforts, reaching peak levels over the summer, and this trend has continued to intensify in 2018. Much of this effort was expertly tailored to gather users’ login credentials to their preferred email provider. Ultimately attempting to compromise Office365, Gmail, ...

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As Tax Season Looms, CPA Firms Targeted with Advanced Malware

As the 2018 tax season gets underway, we want to make sure everyone is aware of the many dangers we see surrounding this event each year.

In fact, curiosity and uncertainty surrounding recent tax law changes may leave many individuals more susceptible to falling victim to one of the many tax-themed attacks that we...

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Necurs Botnet Launching Massive Ransomware Attacks

****Update: 12/29/2017 9 A.M.****

Necurs botnet operators continue to show unpredictability. Following the afternoon blog update yesterday they turned up the volume.  It ended up being our highest volume day of the year originating from the massive botnet.  We blocked 49,784,485 million ransomware messages destined to...

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In the know: Office 365 premium security offerings

 

Office 365 has become the new standard for business productivity software, but it might not offer everything your business needs to be secure.

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