Possible BGP hijack

Beginning at 2023-04-13 15:37:03 UTC, we detected a possible BGP hijack.

Prefix 89.19.57.0/24, is normally announced by AS17447 Unknown.

But beginning at 2023-04-13 15:37:03, the same prefix (89.19.57.0/24) was also announced by ASN 209372.

This was detected by 46 BGPMon peers.

Expected
Start time: 2023-04-13 15:37:03 UTC
Expected prefix: 89.19.57.0/24
Expected ASN: 17447 (Unknown)
Event Details
Detected advertisement: 89.19.57.0/24
Detected Origin ASN 209372 (IPMEN_FOR_CUSTOMERS, RU)
Detected AS Path 28186 12956 3356 20485 33991 209372
Detected by number of BGPMon peers: 46

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