Possible BGP hijack

Beginning at 2021-09-14 12:10:28, we detected a possible BGP hijack.

Prefix 191.37.225.0/24, Normally announced by AS263374 YZO TELECOM TECNOLOGIA EIRELI - ME, BR

Starting at 2021-09-14 12:10:28, a more specific route (191.37.225.9/32) was announced by ASN 34224.

This was detected by 4 BGPMon peers.

Expected
Start time: 2021-09-14 12:10:28 UTC
Expected prefix: 191.37.225.0/24
Expected ASN: 263374 (YZO TELECOM TECNOLOGIA EIRELI - ME, BR)
Event Details
Detected advertisement: 191.37.225.9/32
Detected Origin ASN 34224 (NETERRA-AS, BG)
Detected AS Path 19704 13536 57463 34224
Detected by number of BGPMon peers: 4

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