Possible BGP hijack

Beginning at 2023-05-22 12:30:58 UTC, we detected a possible BGP hijack.

Prefix 45.5.110.0/24, is normally announced by AS266092 R. COSTA DO NASCIMENTO, BR.

But beginning at 2023-05-22 12:30:58, the same prefix (45.5.110.0/24) was also announced by ASN 10.

This was detected by 45 BGPMon peers.

Expected
Start time: 2023-05-22 12:30:58 UTC
Expected prefix: 45.5.110.0/24
Expected ASN: 266092 (R. COSTA DO NASCIMENTO, BR)
Event Details
Detected advertisement: 45.5.110.0/24
Detected Origin ASN 10 (CSNET-EXT-AS, US)
Detected AS Path 200155 39392 1299 3356 266181 266181 266181 266181 266015 10
Detected by number of BGPMon peers: 45

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