Possible BGP hijack

Beginning at 2023-08-25 19:20:26, we detected a possible BGP hijack.

Prefix 187.17.96.0/20, Normally announced by AS7162 Universo Online S.A., BR

Starting at 2023-08-25 19:20:26, a more specific route (187.17.111.0/24) was announced by ASN 265171.

This was detected by 39 BGPMon peers.

Expected
Start time: 2023-08-25 19:20:26 UTC
Expected prefix: 187.17.96.0/20
Expected ASN: 7162 (Universo Online S.A., BR)
Event Details
Detected advertisement: 187.17.111.0/24
Detected Origin ASN 265171 (SITELBRA LTDA, BR)
Detected AS Path 28300 14840 3356 4230 265171
Detected by number of BGPMon peers: 39

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