Cereal2 · Observed attack

AS28665 UDP flood on 177.136.140.0/24 | 2026-10-13 10:53:30Z

· Event #328264

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
2026-10-13T10:53:30.899Z
Recorded

Recorded 129ms after observation

Affected network
177.136.140.0/24
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
101.34.239.216139.59.33.238157.230.127.22164.90.186.13165.22.152.158170.106.35.197178.128.223.92206.189.228.1743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15577.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
000000005f df a2 f0 d2 51 3e a2_....Q>.
000000083e 5d 44 56 20 54 7a aa>]DV Tz.
0000001049 4e 64 6f 11 9c aa b0INdo....
0000001887 5f a1 55 d2 6b 60 3d._.U.k`=

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

SHA-256 of decoded template

7894ef145b315f62d405e6908df9f2b481ebf9160bc3543e797e24d9805d2784

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
5fdfa2f0d2513ea23e5d445620547aaa494e646f119caab0875fa155d26b603d

Original bytes (Base64)

NWZkZmEyZjBkMjUxM2VhMjNlNWQ0NDU2MjA1NDdhYWE0OTRlNjQ2ZjExOWNhYWIwODc1ZmExNTVkMjZiNjAzZA==

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.