Possible BGP hijack

Beginning at 2023-11-01 20:11:05 UTC, we detected a possible BGP hijack.

Prefix 103.38.9.0/24, is normally announced by AS134217 ASIT-AS-AP Australian Support Pty Ltd, AU.

But beginning at 2023-11-01 20:11:05, the same prefix (103.38.9.0/24) was also announced by ASN 270308.

This was detected by 3 BGPMon peers.

Expected
Start time: 2023-11-01 20:11:05 UTC
Expected prefix: 103.38.9.0/24
Expected ASN: 134217 (ASIT-AS-AP Australian Support Pty Ltd, AU)
Event Details
Detected advertisement: 103.38.9.0/24
Detected Origin ASN 270308 (MUNICIPIO DE MACAE, BR)
Detected AS Path 394256 6939 264459 270308
Detected by number of BGPMon peers: 3

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