Cereal2 · Observed attack

AS264178 UDP flood on 138.99.74.0/23 | 2026-10-13 23:09:35Z

· Event #328911

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
2026-10-13T23:09:35.179Z
Recorded

Recorded 156ms after observation

Affected network
138.99.74.0/23
Network operator
Coonexao Telecom e Informatica EIRELIAS264178
Location
Brazil
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
101.34.239.216119.45.12.154170.106.35.19743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
00000000f5 df e9 51 80 1c 1f ad...Q....
0000000853 1e 6a 49 8c 94 b4 d1S.jI....
00000010d8 4b 8b c6 23 28 2d d3.K..#(-.
000000185d 7a 97 22 4e 34 fb df]z."N4..

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

SHA-256 of decoded template

09bd89563eddd0156ca48d0df10da4916ab5c6d9eec92655513eece74f34313b

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
f5dfe951801c1fad531e6a498c94b4d1d84b8bc623282dd35d7a97224e34fbdf

Original bytes (Base64)

ZjVkZmU5NTE4MDFjMWZhZDUzMWU2YTQ5OGM5NGI0ZDFkODRiOGJjNjIzMjgyZGQzNWQ3YTk3MjI0ZTM0ZmJkZg==

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.