Possible BGP hijack

Beginning at 2021-04-23 22:15:46 UTC, we detected a possible BGP hijack.

Prefix 185.160.36.0/22, is normally announced by AS208720 ROS-LTD, RU.

But beginning at 2021-04-23 22:15:46, the same prefix (185.160.36.0/22) was also announced by ASN 57531.

This was detected by 9 BGPMon peers.

Expected
Start time: 2021-04-23 22:15:46 UTC
Expected prefix: 185.160.36.0/22
Expected ASN: 208720 (ROS-LTD, RU)
Event Details
Detected advertisement: 185.160.36.0/22
Detected Origin ASN 57531 (REGIONINFOCOM-AS, RU)
Detected AS Path 12779 31133 57531
Detected by number of BGPMon peers: 9

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