Category Archives: Malware

A Few Users Fooled By Previously Unknown MS Word Bug

Microsoft has just released a patch for a recently discovered bug in Word that allows a malicious document to install malware when opened, even if the user does not enable macros in Office. This vulnerability is being used by spammers to distribute various forms of malware including the Dridex banking trojan. While Cloudmark’s spam filtering […]

Cloudmark’s Security Threat Report, 2016 Q1

Cloudmark’s Security Threat Report for Q1 of 2016 is now live. This quarter we cover: Characteristics of and methods used in script-based Locky ransomware attacks The Locky family’s explosion onto ransomware scene in Q1 due to aggressive distribution A look at the regions most impacted by Locky Analysis of Locky attacks sent to Japan, the […]

Apple OS X Ransomware Delivered by Trojanized Transmission App

The short: A newly discovered ransomware-delivering trojan for Apple’s OS X operating system may have infected several thousand users over the weekend. The trojan, OS X.KeRanger.A, was delivered via a malicious build of the Mac OS X bittorrent client ‘Transmission’ and will begin encrypting victims’ local files today after a 3 day waiting period. This […]

Cloudmark’s Annual Global Threat Report for 2015

Cloudmark’s Annual Threat Report for 2015 is now available and covers the following topics: A look at how enterprises are trying to combat spear phishing and how well these attempts succeed or fail, according to a new survey of 300 companies How the Swizzor malware propagates by camouflaging itself to evade spam filters The risks for brands […]

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