Cereal2 · Observed attack

AS28665 UDP flood on 177.136.141.0/24 | 2026-10-13 10:55:30Z

· Event #328266

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
2026-10-13T10:55:30.910Z
Recorded

Recorded 146ms after observation

Affected network
177.136.141.0/24
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
101.34.239.216119.45.12.154139.59.33.238157.230.127.22165.22.152.158170.106.35.197178.128.223.92206.189.228.1743.153.106.22943.156.101.22843.157.198.13743.159.46.15577.232.43.2182.157.209.4194.183.235.1194.183.235.15995.182.87.134

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
00000000c0 0b 94 de 36 79 76 3a....6yv:
0000000843 1b 55 09 2e 9e 8e f7C.U.....
00000010d0 eb 48 e6 7e d8 96 b6..H.~...
000000184b 95 0a a8 33 15 80 62K...3..b

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

SHA-256 of decoded template

16d68d292b613e12b5ddeeae4594ca85e9a000a6a01607265384366f850ed981

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
c00b94de3679763a431b55092e9e8ef7d0eb48e67ed896b64b950aa833158062

Original bytes (Base64)

YzAwYjk0ZGUzNjc5NzYzYTQzMWI1NTA5MmU5ZThlZjdkMGViNDhlNjdlZDg5NmI2NGI5NTBhYTgzMzE1ODA2Mg==

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.