Possible BGP hijack

Beginning at 2020-10-23 18:25:49 UTC, we detected a possible BGP hijack.

Prefix 193.143.1.0/24, is normally announced by AS60781 LEASEWEB-NL-AMS-01 Netherlands, NL.

But beginning at 2020-10-23 18:25:49, the same prefix (193.143.1.0/24) was also announced by ASN 57271.

This was detected by 5 BGPMon peers.

Expected
Start time: 2020-10-23 18:25:49 UTC
Expected prefix: 193.143.1.0/24
Expected ASN: 60781 (LEASEWEB-NL-AMS-01 Netherlands, NL)
Event Details
Detected advertisement: 193.143.1.0/24
Detected Origin ASN 57271 (BITWEB-AS, RU)
Detected AS Path 393775 7029 6453 20485 49063 57271
Detected by number of BGPMon peers: 5

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