Possible BGP hijack

Beginning at 2020-10-31 10:37:09, we detected a possible BGP hijack.

Prefix 61.153.104.0/23, Normally announced by AS58461 CT-HANGZHOU-IDC No.288,Fu-chun Road, CN

Starting at 2020-10-31 10:37:09, a more specific route (61.153.105.0/24) was announced by ASN 53948.

This was detected by 20 BGPMon peers.

Expected
Start time: 2020-10-31 10:37:09 UTC
Expected prefix: 61.153.104.0/23
Expected ASN: 58461 (CT-HANGZHOU-IDC No.288,Fu-chun Road, CN)
Event Details
Detected advertisement: 61.153.105.0/24
Detected Origin ASN 53948 (ONEIRIC, US)
Detected AS Path 28642 4809 53948
Detected by number of BGPMon peers: 20

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