Mac malware: Tsunami backdoor variants discovered

Graham Cluley
Graham Cluley
@[email protected]

As our friends at ESET have mentioned on their blog, new variants of the latest Mac malware – the Tsunami backdoor Trojan – have been discovered.

SophosLabs has received a few new samples of the malware – which can be used both to launch denial-of-service attacks and by remote hackers to gain access to your computer.

The new versions, which Sophos is adding detection for as OSX/Tsunami-Gen, are builds for 32-bit Intel x86 and PowerPC Mac computers, whereas the original version was 64-bit only. In addition, the new samples use a different IRC domain for their command & control server.

Some folks have questioned why the computer security industry has dubbed this threat “Tsunami”, and I must admit that I find myself feeling somewhat…

Read more in my article on the Naked Security website.

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Graham Cluley is a veteran of the cybersecurity industry, having worked for a number of security companies since the early 1990s when he wrote the first ever version of Dr Solomon's Anti-Virus Toolkit for Windows. Now an independent analyst, he regularly makes media appearances and is an international public speaker on the topic of cybersecurity, hackers, and online privacy. Follow him on Twitter, Mastodon, Threads, Bluesky, or drop him an email.

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