Possible BGP hijack

Beginning at 2023-11-01 20:10:08 UTC, we detected a possible BGP hijack.

Prefix 36.255.177.0/24, is normally announced by AS141748 .

But beginning at 2023-11-01 20:10:08, the same prefix (36.255.177.0/24) was also announced by ASN 270308.

This was detected by 5 BGPMon peers.

Expected
Start time: 2023-11-01 20:10:08 UTC
Expected prefix: 36.255.177.0/24
Expected ASN: 141748 ()
Event Details
Detected advertisement: 36.255.177.0/24
Detected Origin ASN 270308 (MUNICIPIO DE MACAE, BR)
Detected AS Path 394256 6939 264459 270308
Detected by number of BGPMon peers: 5

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