Possible BGP hijack

Beginning at 2018-12-20 18:56:00 UTC, we detected a possible BGP hijack.

Prefix 77.111.255.0/24, is normally announced by AS39356 AVANTI-UK-AS, GB.

But beginning at 2018-12-20 18:56:00, the same prefix (77.111.255.0/24) was also announced by ASN 9121.

This was detected by 3 BGPMon peers.

Expected
Start time: 2018-12-20 18:56:00 UTC
Expected prefix: 77.111.255.0/24
Expected ASN: 39356 (AVANTI-UK-AS, GB)
Event Details
Detected advertisement: 77.111.255.0/24
Detected Origin ASN 9121 (TTNET, TR)
Detected AS Path 15296 16696 6939 9121
Detected by number of BGPMon peers: 3

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