New Exploit: Malware Hidden Inside JPG EXIF Headers

Last Updated on Tuesday, 16 July 2013 14:12 Written by Rob Turner Hits: 6047

A few days ago, Peter Gramantik from Securi's research team found a very interesting backdoor on a compromised site. This backdoor didn’t rely on the normal patterns to hide its content (like base64/gzip encoding), but stored its data in the EXIF headers of a JPEG image. It also used the exif_read_data and preg_replace PHP functions to read the headers and execute itself.

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We run ClamAV to scan account files on Islandnet.com upon request, I will be contacting them to see if they are going to implement anything in the scanner to check for this type of exploit.

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New Exploit: Malware Hidden Inside JPG EXIF Headers

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