Possible BGP hijack

Beginning at 2017-04-04 15:25:02, we detected a possible BGP hijack.

Prefix 179.239.192.0/18, Normally announced by AS7738 Telemar Norte Leste S.A.

Starting at 2017-04-04 15:25:02, a more specific route (179.239.255.0/24) was announced by ASN 266360.

This was detected by 56 BGPMon peers.

Expected
Start time: 2017-04-04 15:25:02 UTC
Expected prefix: 179.239.192.0/18
Expected ASN: 7738 (Telemar Norte Leste S.A.)
Event Details
Detected advertisement: 179.239.255.0/24
Detected Origin ASN 266360 (UTOPIANET INFORMATICA E TELECOMUNICACOES LTDA)
Detected AS Path 56309 4651 6939 266360
Detected by number of BGPMon peers: 56

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