Cereal2 · Observed attack

AS28665 UDP flood on 177.136.138.0/24 | 2026-10-13 10:49:30Z

· Event #328260

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
2026-10-13T10:49:30.881Z
Recorded

Recorded 137ms after observation

Affected network
177.136.138.0/24
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
101.34.239.216119.45.12.154159.223.68.251164.90.186.13165.22.152.158170.106.35.197178.128.223.92188.166.12.8206.189.228.1743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
000000008f 64 92 ce 33 ce 32 00.d..3.2.
0000000884 64 d1 6f f6 7a a1 3b.d.o.z.;
00000010e1 de ce 41 5e e6 e0 57...A^..W
0000001808 57 e8 e5 a5 ed 1a 04.W......

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

SHA-256 of decoded template

7f30bc6a7fee4b8d7437c59e0823daa0e212dc6b55cc21991181f276ba22932b

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
8f6492ce33ce32008464d16ff67aa13be1dece415ee6e0570857e8e5a5ed1a04

Original bytes (Base64)

OGY2NDkyY2UzM2NlMzIwMDg0NjRkMTZmZjY3YWExM2JlMWRlY2U0MTVlZTZlMDU3MDg1N2U4ZTVhNWVkMWEwNA==

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.