Possible BGP hijack

Beginning at 2022-10-09 23:22:47, we detected a possible BGP hijack.

Prefix 185.45.28.0/22, Normally announced by AS198731 PRISCO-AS, ES

Starting at 2022-10-09 23:22:47, a more specific route (185.45.31.0/24) was announced by ASN 263483.

This was detected by 4 BGPMon peers.

Expected
Start time: 2022-10-09 23:22:47 UTC
Expected prefix: 185.45.28.0/22
Expected ASN: 198731 (PRISCO-AS, ES)
Event Details
Detected advertisement: 185.45.31.0/24
Detected Origin ASN 263483 (DIRECT LAN TELECOMUNICACOES SOROCABA LTDA, BR)
Detected AS Path 263287 262868 53013 263483
Detected by number of BGPMon peers: 4

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