Mobile malware sends premium rate SMS messages

Graham Cluley
Graham Cluley
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The world of mobile malware isn’t completely dormant.

Although we have been waiting almost ten years now for the dire predictions of some security companies to come true about the tidalwave of mobile malware waiting for us “real soon now”, there are still the occasional sightings of new malicious code which affects mobile phones.

These new mobile phone viruses are treated as something of a curiousity inside our labs, and analysts who normally spend all day examining mostly Windows-related malware may view it as a nice distraction from the run-of-the-mill malicious code.

The latest example to arrive in SophosLabs is Troj/Konov-A, a Trojan horse that doles out SMS text messages to premium rate numbers (thus, apparently generating revenue for the perpetrators).

That means that the Trojan, which appears to originate from Russia, also costs the user money of course.

It’s apparent that Konov…

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, Bluesky, or drop him an email.