signalblur/exifsmugglingpoc: A Proof-of-Concept using Cache Smuggling + Exif data to passively download a second stage payload · GitHub

A Proof-of-Concept evolution of Cache Smuggling. This attack conceals an executable payload inside a JPG’s Exif data. As a result, image caching (such as that of a Web Browser) can be used to passively download the payload.

As a result, the example loader (chrome_poc.ps1) does not need to make any internet requests to fetch the second stage payload.
Instead, it simply extracts it from the Chrome browser’s cache.

For full details see: https://malwaretech.com/2025/10/exif-smuggling

python3 build_clickfix_cmd.py --input-file chrome_poc.ps1 --output-file encoded_command.txt --fake-path "C:\test\doc.txt"

python3 exif_smuggling.py --input-file image.jpg --output-file payload.jpg --payload hello_world.dll

www/index.html