GIF_1x1 in rt.udmserve.net

On 2021-01-11T08:58:16.900251+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://rt.udmserve.net/udm/fetch.pix?d…

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).