Possible BGP hijack

Beginning at 2021-01-03 06:42:58, we detected a possible BGP hijack.

Prefix 42.96.128.0/17, Normally announced by AS37963 CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN

Starting at 2021-01-03 06:42:58, a more specific route (42.96.157.0/24) was announced by ASN 9749.

This was detected by 3 BGPMon peers.

Expected
Start time: 2021-01-03 06:42:58 UTC
Expected prefix: 42.96.128.0/17
Expected ASN: 37963 (CNNIC-ALIBABA-CN-NET-AP Hangzhou Alibaba Advertising Co.,Ltd., CN)
Event Details
Detected advertisement: 42.96.157.0/24
Detected Origin ASN 9749 (GPKNET-AS-AU GPK Computers Pty Ltd, Internet Service Provider, Melbourne, AU)
Detected AS Path 24220 9749
Detected by number of BGPMon peers: 3

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