If you use a Mac or MacBook, be aware that banking malware called Dridex is moving from attacking Windows computers to attacking Macs with email attachments that look like regular documents.
It is an information-stealing malware attributed to the cybercriminal group Evil Corp and used to obtain sensitive data from infected machines. Cybersecurity software company Trend Micro analyzed the malware and found that the file can run on macOS and iOS systems.
What is Dridex malware and what does it do?
The Dridex malware has been around for years, and cybersecurity companies have been targeting it since its inception. The goal of this malware is to obtain private information from people’s bank accounts. Dridex is classified as Trojan malware, a type of malware that disguises its malicious code in seemingly innocuous data to catch people off guard. Cyber hackers usually spread it through spam emails, masquerading as official emails.
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How does this macOS Dridex malware work?
This version of the Dridex malware contains a malicious document that runs automatically once the user opens it. Once running, it overwrites any Microsoft Word files contained on the infected macOS computer and will contact a remote server to download more files. One of these files is a Windows executable that runs on Dridex.
If you have a Mac, you may not immediately realize that your files are corrupted, which is why Dridex is specifically for Word documents. Because people often share Word documents, people using Macs can share their overwritten malicious files with others and unknowingly infect those devices, creating a malware domino effect.
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In this case, the malware itself cannot infect the target Mac because it is contained within an executable Windows file. However, if you were to download a corrupted file, it could cause files on your Mac to be overwritten with malicious files. When shared online, it has the potential to unknowingly infect your family, friends and colleagues with malware.
How can I prevent malware from attacking my laptop?
My greatest wish is to educate and inform you of the increasing real threats to each of our connected devices, and to encourage you to use strong antivirus security for everything in your life that is connected to the rest of the world.
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