Possible BGP hijack

Beginning at 2024-02-10 00:47:24 UTC, we detected a possible BGP hijack.

Prefix 177.155.242.0/24, is normally announced by AS52778 SANER TELECOM INFORMATICA LTDA ME, BR.

But beginning at 2024-02-10 00:47:24, the same prefix (177.155.242.0/24) was also announced by ASN 0.

This was detected by 2 BGPMon peers.

Expected
Start time: 2024-02-10 00:47:24 UTC
Expected prefix: 177.155.242.0/24
Expected ASN: 52778 (SANER TELECOM INFORMATICA LTDA ME, BR)
Event Details
Detected advertisement: 177.155.242.0/24
Detected Origin ASN 0 ()
Detected AS Path 27257 174 262589 28329 262503
Detected by number of BGPMon peers: 2

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