According to Wikipedia QR code is a type of matrix barcode (or two-dimensional code) first designed for the automotive industry. QR codes are becoming more and more popular today and are used in banners, magazines, transport and badges in order to provide quick and easy access to particular information. A QR code has a pretty big capacity (compared to a simple barcode) and is able to store 7089 numeric characters or 4296 alphanumeric characters; and it is more than enough to store text or URL.
But about the malicious QR codes? Yes, you scan a QR code with the help of your smartphone and it redirects you to a URL with a malicious file (APK or JAR). Such QR codes exist and are gaining in popularity.
Today people who use smartphones often look for new software for their devices with the help of desktop PCs. If a user finds something interesting he or she must retype the application URL in the smartphone browser for downloading it. It’s not very convenient so that’s why such websites have QR codes which can be easily scanned.
It is known that today a lot of mobile malware (especially SMS Trojans) is spread via sinister websites where all software is malicious. And cybercriminals have started to use malicious QR codes for users’ ‘convenience’. Here is an example of such a website:
Part of the website with malicious QR code
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