Cereal2 · Observed attack

AS28203 UDP flood on 189.91.43.0/24 | 2026-10-13 08:27:09Z

· Event #328133

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
2026-10-13T08:27:09.995Z
Recorded

Recorded 132ms after observation

Affected network
189.91.43.0/24
Network operator
Webcenter Sist Prest de Servicos de InformaticaAS28203
Location
Brazil
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
101.34.239.216119.45.12.154139.59.33.238157.230.127.22159.223.68.251164.90.186.13165.22.152.158170.106.35.197178.128.223.92206.189.228.1743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5364.227.72.6877.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
00000000f9 5b 83 ae 6a 8e 69 b8.[..j.i.
00000008ea 0d 7d 60 4a 37 f3 d9..}`J7..
00000010f2 df db 02 30 c7 fd be....0...
00000018b6 55 cb e7 b8 6b 42 d0.U...kB.

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

SHA-256 of decoded template

c6c03d5f9bdd7d5ab7fe76fe7805aa580a1cb7071c881a130e9371b1a3339bf9

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
f95b83ae6a8e69b8ea0d7d604a37f3d9f2dfdb0230c7fdbeb655cbe7b86b42d0

Original bytes (Base64)

Zjk1YjgzYWU2YThlNjliOGVhMGQ3ZDYwNGEzN2YzZDlmMmRmZGIwMjMwYzdmZGJlYjY1NWNiZTdiODZiNDJkMA==

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.