Possible BGP hijack

Beginning at 2019-01-07 11:56:40, we detected a possible BGP hijack.

Prefix 77.77.128.0/18, Normally announced by AS8390 TPN-AS Interoute Bulgaria JSCo., BG

Starting at 2019-01-07 11:56:40, a more specific route (77.77.168.0/21) was announced by ASN 3257.

This was detected by 180 BGPMon peers.

Expected
Start time: 2019-01-07 11:56:40 UTC
Expected prefix: 77.77.128.0/18
Expected ASN: 8390 (TPN-AS Interoute Bulgaria JSCo., BG)
Event Details
Detected advertisement: 77.77.168.0/21
Detected Origin ASN 3257 (GTT-BACKBONE GTT, DE)
Detected AS Path 46044 4800 3257
Detected by number of BGPMon peers: 180

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