Hidden_iframe in fmnetwork.nl

On 2019-12-02T04:33:50.738684+00:00 we found pattern Hidden_iframe, type: Suspicious, (Detect JavaScript injecting IFRAME injection using various HTML and CSS attributes to hide it.) in the page https://fmnetwork.nl/tracking/scr7/view…

Code sample:

b'document.write(' … b'<iframe' … b'display: none'

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).