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

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 Example Usage Convert PowerShell Loader to ClickFix Command python3 build_clickfix_cmd.py --input-file chrome_poc.ps1 --output-file encoded_command.txt --fake-path "C:\test\doc.txt" Embed payload dll inside arbitrary JPG python3 exif_smuggling.py --input-file image.jpg --output-file payload.jpg --payload hello_world.dll Example Phishing page www/index.html