Possible BGP hijack

Beginning at 2019-08-20 19:53:23, we detected a possible BGP hijack.

Prefix 194.158.32.0/20, Normally announced by AS5532 TERRANETMALTA, MT

Starting at 2019-08-20 19:53:23, a more specific route (194.158.36.0/24) was announced by ASN 3257.

This was detected by 163 BGPMon peers.

Expected
Start time: 2019-08-20 19:53:23 UTC
Expected prefix: 194.158.32.0/20
Expected ASN: 5532 (TERRANETMALTA, MT)
Event Details
Detected advertisement: 194.158.36.0/24
Detected Origin ASN 3257 (GTT-BACKBONE GTT, DE)
Detected AS Path 34962 203629 29695 1299 3257
Detected by number of BGPMon peers: 163

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