Cereal2 · Observed attack

AS28665 UDP flood on 177.136.155.0/24 | 2026-10-10 21:23:50Z

· Event #324666

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
2026-10-10T21:23:50.490Z
Recorded

Recorded 141ms after observation

Affected network
177.136.155.0/24
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
130.94.1.105130.94.107.174130.94.16.10130.94.17.15130.94.32.14130.94.77.120137.184.100.23206.189.2.8638.60.136.14038.60.199.12638.60.238.10994.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
00000000cf 97 94 56 23 e4 7b 60...V#.{`
0000000829 6d 32 fa a7 82 32 1a)m2...2.
00000010c9 66 16 d6 e8 7e 13 aa.f...~..
00000018fd 12 e4 a3 f7 b7 a4 9c........

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

SHA-256 of decoded template

dcde8a6897a654668d30051309288220f906de594e539a15c74c78e8fb8c3a37

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
cf97945623e47b60296d32faa782321ac96616d6e87e13aafd12e4a3f7b7a49c

Original bytes (Base64)

Y2Y5Nzk0NTYyM2U0N2I2MDI5NmQzMmZhYTc4MjMyMWFjOTY2MTZkNmU4N2UxM2FhZmQxMmU0YTNmN2I3YTQ5Yw==

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.