Cereal2 · Observed attack

AS28665 UDP flood on 177.136.143.0/24 | 2026-10-14 10:50:04Z

· Event #329539

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
2026-10-14T10:50:04.262Z
Recorded

Recorded 138ms after observation

Affected network
177.136.143.0/24
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
101.34.239.216119.45.12.154170.106.35.19743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
0000000037 9c 68 5f fc 7c 90 6b7.h_.|.k
000000087b 76 04 9e eb a0 a8 55{v.....U
0000001001 23 c9 a0 2e 4e a0 9c.#...N..
0000001836 98 f7 c0 2d 51 ef 656...-Q.e

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

SHA-256 of decoded template

0f9a68cf66ca3eaf718d50c60ef27e9f1919b6d09b8a7ec151f0ec1f6ef1c8ae

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
379c685ffc7c906b7b76049eeba0a8550123c9a02e4ea09c3698f7c02d51ef65

Original bytes (Base64)

Mzc5YzY4NWZmYzdjOTA2YjdiNzYwNDllZWJhMGE4NTUwMTIzYzlhMDJlNGVhMDljMzY5OGY3YzAyZDUxZWY2NQ==

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.