AppRiver Update

Cybersecurity News and Threat Intelligence for Business

Something Wicked This Way Comes – To Your Inbox

on July 05, 2018 | by Teresa Zwierzchowski | AppRiver, Email, hackers, phishing, Ransomware, SecureSurf, securetide, Security Risks, Security Vulnerablities, spearphishing

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. read more

HMRC-themed emails carry Trickbot infection

on June 11, 2018 | by Troy Gill | AppRiver, Digital Degenerate, malware, Ransomware, Security Risks, Trickbot

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 ... read more

BEC Attacks Evolving - Phishing via XPS Files

on May 22, 2018 | by David Pickett | email fraud, phishing, securetide, Security Risks, social engineering, xps extension

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 ... read more

AppRiver Live: Hackers are getting personal

on March 22, 2018 | by Teresa Zwierzchowski | AppRiver, AppRiver News, conversation hijacking attacks, email scams, malware, Office 365, Security Risks

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 u ... read more

Warning! Trojan Droppers Exploiting Symbolic Link …

on February 12, 2018 | by David Pickett | Digital Degenerate, dropper, excel, malware, remote access trojan, securetide, Security Risks, .slk, trojan downloader

Trojan Droppers Exploiting Symbolic Link FilesMalicious 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 detaile ... read more

Attackers Leverage Stolen Email Credentials In Mal…

on February 06, 2018 | by Troy Gill | malware, phishing, Ransomware, Security Risks

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 compromi ... read more

As Tax Season Looms, CPA Firms Targeted with Advan…

on January 18, 2018 | by Troy Gill | adwind, Digital Degenerate, email scams, malware, RAT, Security Risks, tax fraud, Trojan. IRS Email

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 ... read more

Necurs Botnet Launching Massive Ransomware Attacks

on December 26, 2017 | by David Pickett | AppRiver, botnet, globeimposter, locky, malware, necurs, Ransomware, securetide, Security Risks

****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 ... read more