GIF_1x1 in www.facebook.com

On 2020-06-30T08:18:50.580581+00:00 we found pattern GIF_1x1, type: User tracking and fingerprinting, (1x1 transparent GIF is frequently used as user tracking mechanism) in the page https://www.facebook.com/fr/b.php?p=153… referenced from https://www.straighttalk.com/ .

Code sample:

b'GIF8' … b'\x01\x00\x01\x00'

This feature is experimental so please feel free to contact us if you feel any of the reported issues is a false positive or you want to suggest a pattern that should be detected (we are using Yara standard).