Cereal2 · Observed attack

Configurable custom-payload UDP flood on OVH SAS in United States

· Event #251933

WhatsApp

Country-level precision. botnet.cl stores the target country, never a city or coordinates, so the marker sits at the country's center.

What this method does

Cereal2 vector 19: Configurable custom-payload UDP flood.

All Configurable custom-payload UDP flood observations
Observed
2026-09-22T03:23:59.352Z
Recorded

Recorded 462ms after observation

Affected network
51.81.91.0/24
Network operator
OVH SASAS16276
Location
United States
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
129.226.82.94185.173.38.47185.173.39.243.130.251.22843.155.204.22843.156.47.24043.157.142.7843.157.181.15643.157.198.20043.166.153.5843.166.252.22243.166.68.1743.173.124.2777.232.37.5577.232.41.11977.232.42.11277.232.42.7677.232.43.4292.119.158.3994.183.235.15994.183.235.24995.182.87.134

All controllers with retained sightings of this order. Older records may have incomplete source coverage.

Geolocation data
ipinfo-lite · 2026-07

Snapshot taken at ingestion; it is never re-resolved later.

Payload observed in C2 command

Observed command data; this does not establish what reached the target.

No custom payload recorded
Configured datagram length
1400 bytes
Minimum length option
72 bytes
Maximum length option
512 bytes

Length options are command settings, not measured packet sizes. The decoded template can differ from the resulting datagrams.

Other attacks on this network

Within 24 hours of this observation

Other attacks in this country

Within 24 hours of this observation

botnet.cl reports infrastructure it observed. An address appearing here identifies a target or a relay, not a person responsible for the attack.