PNG_1x1 in cm.g.doubleclick.net

On 2018-08-21T07:20:12.986429+00:00 we found pattern PNG_1x1, type: User tracking and fingerprinting, (1x1 transparent PNG is frequently used as user tracking mechanism) in the page https://cm.g.doubleclick.net/pixel?goog… referenced from https://webcookies.org/ .

Code sample:

b'\x89PNG' … b'IHDR' … b'\x00\x00\x00\x01\x00\x00\x00\x01'

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).

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