jmcculloch
commented
1 month ago same image posted twice, the main image and the media thumbnails
❯ md5 *
MD5 (455142099_10162611356200769_2398335032082627919_n.jpg?_nc_cat=102&ccb=1-7&_nc_sid=aa7b47&_nc_ohc=I14QsKuyLLUQ7kNvgHsuLfx&_nc_ht=scontent-sjc3-1.xx&oh=00_AYAp-S_bKZUaklX5Xs-BQRWn6lL6UWWy-qdHJpRtjtvTaA&oe=66C2E0EF) = 0192202ccf2c1c7da3a7a2583a7596eb
MD5 (455142099_10162611356200769_2398335032082627919_n.jpg?stp=dst-jpg_s350x350&_nc_cat=102&ccb=1-7&_nc_sid=aa7b47&_nc_ohc=I14QsKuyLLUQ7kNvgHsuLfx&_nc_ht=scontent-sjc3-1.xx&oh=00_AYBvNdF9EWpnb2xn1lSMu6srfx94HHb0hEevicYEv-s70g&oe=66C2E0EF) = 7102c4ccd77cb4142e33513ce68d3ee8
MD5 (455787489_10162611355490769_7228005496497128379_n.jpg?_nc_cat=100&ccb=1-7&_nc_sid=aa7b47&_nc_ohc=5jTrGz68_dwQ7kNvgHlnEVH&_nc_ht=scontent-sjc3-1.xx&oh=00_AYCEGfTQPfRiy23TN6AwRv4Ou8wBuaqp2XvF-af60hHo9A&oe=66C2E768) = 0192202ccf2c1c7da3a7a2583a7596eb
MD5 (455787489_10162611355490769_7228005496497128379_n.jpg?stp=dst-jpg_s350x350&_nc_cat=100&ccb=1-7&_nc_sid=aa7b47&_nc_ohc=5jTrGz68_dwQ7kNvgHlnEVH&_nc_ht=scontent-sjc3-1.xx&oh=00_AYCv7wyY0Pb8zLDsJ0NoHFYPLaKGfNse--jQZeHha68MYw&oe=66C2E768) = 7102c4ccd77cb4142e33513ce68d3ee8```
Is it possible to detect re-used scam images? If the same source file is uploaded multiple times to facebook, are the image checksums consistent or change based on resizing/(re)compression?
Scammers tend to run profile/cover images through a blur filter, probably to avoid duplicated/stolen images?