@Half_Duplex Thank you for reaching out to Microsoft Q&A.
Were you able to report the issue on this website? - https://msrc.microsoft.com/report/abuse
If not, please let me know how/where you reached out to Azure? Please include any support request number if available.
Also to further understand the issue, can you please provide more details regarding your deployment such as which service/s do you have deployed on Azure that is sending this traffic? What is the source IP/s for the same etc.? Thank you!