Cereal2 · Observed attack

AS28665 UDP flood on 177.136.131.0/24 | 2026-10-14 10:30:04Z

· Event #329520

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
2026-10-14T10:30:04.178Z
Recorded

Recorded 135ms after observation

Affected network
177.136.131.0/24
Network operator
Predlink Rede de Telecomunicções LtdaAS28665
Location
Brazil
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
101.34.239.216119.45.12.154170.106.35.19743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.15994.183.235.24995.182.87.134

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

Geolocation data
ipinfo-lite · 2026-09

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.

Custom payload · 32 bytes

Decoded template · 32 bytes

OffsetHexadecimalASCII
000000002b ad 54 24 4f 9d 6d cf+.T$O.m.
000000087e a4 94 c9 fb 2b 22 fc~....+".
00000010ed b0 d7 1b 15 67 dd 71.....g.q
000000189e e6 75 15 6a bc 06 0d..u.j...

8 or 16 bytes per row, depending on screen width. Dots represent non-printable bytes.

SHA-256 of decoded template

5471ce3c7bfcee274418077dba0d777a263d6b739255a68a8229c2c36883e234

Configured datagram length
1400 bytes
Minimum length option
1000 bytes
Maximum length option
1400 bytes

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

Original encoded value
2bad54244f9d6dcf7ea494c9fb2b22fcedb0d71b1567dd719ee675156abc060d

Original bytes (Base64)

MmJhZDU0MjQ0ZjlkNmRjZjdlYTQ5NGM5ZmIyYjIyZmNlZGIwZDcxYjE1NjdkZDcxOWVlNjc1MTU2YWJjMDYwZA==

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.