Possible BGP hijack

Beginning at 2019-05-25 22:45:18 UTC, we detected a possible BGP hijack.

Prefix 177.54.158.0/24, is normally announced by AS262287 Maxihost Hospedagem de Sites Ltda, BR.

But beginning at 2019-05-25 22:45:18, the same prefix (177.54.158.0/24) was also announced by ASN 16734.

This was detected by 179 BGPMon peers.

Expected
Start time: 2019-05-25 22:45:18 UTC
Expected prefix: 177.54.158.0/24
Expected ASN: 262287 (Maxihost Hospedagem de Sites Ltda, BR)
Event Details
Detected advertisement: 177.54.158.0/24
Detected Origin ASN 16734 (AS-SUNFIBERNET - Sun Fibernet Inc., US)
Detected AS Path 394255 6327 1299 12956 23201 16734
Detected by number of BGPMon peers: 179

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