Cereal2 · Observed attack

AS28665 UDP flood on 177.136.158.0/24 | 2026-10-14 11:18:04Z

· Event #329566

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
2026-10-14T11:18:04.377Z
Recorded

Recorded 130ms after observation

Affected network
177.136.158.0/24
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
101.34.239.216119.45.12.154170.106.35.19743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15995.182.87.134

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
00000000b9 71 81 30 45 dd 9d 86.q.0E...
00000008b9 9c 58 01 b2 e2 0c 7d..X....}
00000010b7 c4 ad 20 94 8d aa 6b... ...k
00000018eb cc 9f af 82 6b f8 22.....k."

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

SHA-256 of decoded template

7eab25982f20b8331362c302afd16030fcbebf4a6466a05da1da98f9d124d1c3

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
b971813045dd9d86b99c5801b2e20c7db7c4ad20948daa6bebcc9faf826bf822

Original bytes (Base64)

Yjk3MTgxMzA0NWRkOWQ4NmI5OWM1ODAxYjJlMjBjN2RiN2M0YWQyMDk0OGRhYTZiZWJjYzlmYWY4MjZiZjgyMg==

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.