Possible BGP hijack

Beginning at 2023-03-27 19:05:10 UTC, we detected a possible BGP hijack.

Prefix 185.135.143.0/24, is normally announced by AS38337 Unknown.

But beginning at 2023-03-27 19:05:10, the same prefix (185.135.143.0/24) was also announced by ASN 15731.

This was detected by 7 BGPMon peers.

Expected
Start time: 2023-03-27 19:05:10 UTC
Expected prefix: 185.135.143.0/24
Expected ASN: 38337 (Unknown)
Event Details
Detected advertisement: 185.135.143.0/24
Detected Origin ASN 15731 (WOLKEE-AS Wolkee Cloud GmbH, DE)
Detected AS Path 202365 57866 9002 12732 15731
Detected by number of BGPMon peers: 7

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