Possible BGP hijack

Beginning at 2017-10-11 15:27:53 UTC, we detected a possible BGP hijack.

Prefix 190.5.31.0/24, is normally announced by AS27827 Gualberto Larrauri.

But beginning at 2017-10-11 15:27:53, the same prefix (190.5.31.0/24) was also announced by ASN 3549.

This was detected by 164 BGPMon peers.

Expected
Start time: 2017-10-11 15:27:53 UTC
Expected prefix: 190.5.31.0/24
Expected ASN: 27827 (Gualberto Larrauri)
Event Details
Detected advertisement: 190.5.31.0/24
Detected Origin ASN 3549 (Level 3 Communications, Inc.)
Detected AS Path 25291 1299 3356 3549
Detected by number of BGPMon peers: 164

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