Cereal2 · Observed attack

AS28665 UDP flood on 177.136.144.0/24 | 2026-10-13 11:01:30Z

· Event #328272

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
2026-10-13T11:01:30.935Z
Recorded

Recorded 138ms after observation

Affected network
177.136.144.0/24
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
139.59.33.238159.223.68.251164.90.186.13165.22.152.158170.106.35.197188.166.12.8206.189.228.1743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.173.37.5364.227.72.6877.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.249

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
000000008a 43 2c 09 ec 08 ff 60.C,....`
00000008ec 4b 71 5a 92 a5 57 a2.KqZ..W.
0000001026 ba c8 e5 5d ee 96 43&...]..C
00000018b6 d2 53 f0 e3 a5 be 1b..S.....

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

SHA-256 of decoded template

3662a7204e02c43635ef224196e8ff060330f6395fff0ef12494f92f2b1b6bec

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
8a432c09ec08ff60ec4b715a92a557a226bac8e55dee9643b6d253f0e3a5be1b

Original bytes (Base64)

OGE0MzJjMDllYzA4ZmY2MGVjNGI3MTVhOTJhNTU3YTIyNmJhYzhlNTVkZWU5NjQzYjZkMjUzZjBlM2E1YmUxYg==

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.