by Saumil Shah
"A good exploit is one that is delivered with style."
Stegosploit creates a new way to encode "drive-by" browser exploits and deliver them through image files. These payloads are undetectable using current means. This talk discusses two broad underlying techniques used for image based exploit delivery - Steganography and Polyglots. Drive-by browser exploits are steganographically encoded into JPG and PNG images. The resultant image file is fused with HTML and Javascript decoder code, turning it into an HTML+Image polyglot. The polyglot looks and feels like an image, but is decoded and triggered in a victim's browser when loaded. The Stegosploit Toolkit v0.3, to be released with improvements upon existing v0.2, contains the tools necessary to test image based exploit delivery.
"A good exploit is one that is delivered with style."
Stegosploit creates a new way to encode "drive-by" browser exploits and deliver them through image files. These payloads are undetectable using current means. This talk discusses two broad underlying techniques used for image based exploit delivery - Steganography and Polyglots. Drive-by browser exploits are steganographically encoded into JPG and PNG images. The resultant image file is fused with HTML and Javascript decoder code, turning it into an HTML+Image polyglot. The polyglot looks and feels like an image, but is decoded and triggered in a victim's browser when loaded. The Stegosploit Toolkit v0.3, to be released with improvements upon existing v0.2, contains the tools necessary to test image based exploit delivery.
Stegospolit - Exploit Delivery With Steganography and Polyglots blackhat 2015 | |
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