What is Zeus? Notorious malware under the microscope

ZeusZeus, also known as ZBot, has grown into one of the most popular (or should that be unpopular?) and widespread crimeware kits on the internet.

Its ease of use and effectiveness make it an attractive choice for today’s cybercriminals.

And an infection by Zeus can be extremely costly. Whether you’re an individual or an organisation, the impact of losing passwords and online banking details can be disastrous.

Clearly there’s a significant demand for easy-to-use, information-stealing Trojans amongst the internet underground, and we can expect to see more from Zeus itself and its competitors.

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Today SophosLabs expert James Wyke has published a technical paper, taking an indepth look at Zeus’s functionality and behaviour of the Zbot binary, in an examination which gives some feeling for the malware’s sophistication.

Download the free “What is Zeus” technical paper now.
[no registration required]


Graham Cluley is an award-winning keynote speaker who has given presentations around the world about cybersecurity, hackers, and online privacy. A veteran of the computer security industry since the early 1990s, he wrote the first ever version of Dr Solomon's Anti-Virus Toolkit for Windows, makes regular media appearances, and is the co-host of the popular "Smashing Security" podcast. Follow him on Twitter, Mastodon, Threads, Bluesky, or drop him an email.

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