Cereal2 · Observed attack

AS28203 UDP flood on 189.91.43.0/24 | 2026-10-13 23:23:35Z

· Event #328922

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
2026-10-13T23:23:35.271Z
Recorded

Recorded 151ms 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
101.34.239.216119.45.12.154170.106.35.19743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.15994.183.235.24995.182.87.134

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
000000008e 1d 4f d5 e3 bb 3b 7b..O...;{
000000081a a2 ea e9 a3 ae e7 e3........
00000010f7 18 1a 8f 68 79 05 53....hy.S
0000001805 8f d1 ee 06 56 34 4f.....V4O

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

SHA-256 of decoded template

fe9291ae8003d83a3014c72ba49bdda9498d2f2bbcb8872542b45f65c59f5083

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
8e1d4fd5e3bb3b7b1aa2eae9a3aee7e3f7181a8f68790553058fd1ee0656344f

Original bytes (Base64)

OGUxZDRmZDVlM2JiM2I3YjFhYTJlYWU5YTNhZWU3ZTNmNzE4MWE4ZjY4NzkwNTUzMDU4ZmQxZWUwNjU2MzQ0Zg==

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.