Dozens of porn sites are turning to a familiar source to generate likes on Facebook—malware that causes browsers to surreptitiously endorse the sites. This time, the sites are using a newer vehicle for sowing this malware—.svg image files.
The Scalable Vector Graphics format is an open standard for rendering two-dimensional graphics. Unlike more common formats such as .jpg or .png, .svg uses XML-based text to specify how the image should appear, allowing files to be resized without losing quality due to pixelation. But therein lies the rub: The text in these files can incorporate HTML and JavaScript, and that, in turn, opens the risk of them being abused for a range of attacks, including cross-site scripting, HTML injection, and denial of service.
Case of the silent clicker
Security firm Malwarebytes on Friday said it recently discovered that porn sites have been seeding boobytrapped .svg files to select visitors. When one of these people clicks on the image, it causes browsers to surreptitiously register a like for Facebook posts promoting the site.
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This articles is written by : Nermeen Nabil Khear Abdelmalak
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