Possible BGP hijack

Beginning at 2018-10-22 14:01:36 UTC, we detected a possible BGP hijack.

Prefix 154.72.54.0/24, is normally announced by AS327797 COWS.

But beginning at 2018-10-22 14:01:36, the same prefix (154.72.54.0/24) was also announced by ASN 37154.

This was detected by 87 BGPMon peers.

Expected
Start time: 2018-10-22 14:01:36 UTC
Expected prefix: 154.72.54.0/24
Expected ASN: 327797 (COWS)
Event Details
Detected advertisement: 154.72.54.0/24
Detected Origin ASN 37154 (ZAMTEL)
Detected AS Path 12242 3549 3356 37662 37154
Detected by number of BGPMon peers: 87

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