Possible BGP hijack

Beginning at 2017-04-12 11:04:25, we detected a possible BGP hijack.

Prefix 131.7.0.0/16, Normally announced by AS387 754th Electronic Systems Group

Starting at 2017-04-12 11:04:25, a more specific route (131.7.7.0/24) was announced by ASN 262725.

This was detected by 50 BGPMon peers.

Expected
Start time: 2017-04-12 11:04:25 UTC
Expected prefix: 131.7.0.0/16
Expected ASN: 387 (754th Electronic Systems Group)
Event Details
Detected advertisement: 131.7.7.0/24
Detected Origin ASN 262725 (RG SILVEIRA LTDA)
Detected AS Path 263388 28226 262589 262725
Detected by number of BGPMon peers: 50

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