Cereal2 · Observed attack

AS28665 UDP flood on 177.136.134.0/24 | 2026-10-14 10:34:04Z

· Event #329524

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
2026-10-14T10:34:04.223Z
Recorded

Recorded 134ms after observation

Affected network
177.136.134.0/24
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
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
000000008d 02 9c f2 11 02 84 e5........
00000008b0 f3 a3 d0 d0 b5 76 78......vx
0000001087 dd e9 68 0b 0e ec 09...h....
00000018a0 5a 45 27 b7 2a c3 16.ZE'.*..

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

SHA-256 of decoded template

481cce22562d7ec399ace3fa6d4079efaebd987ba6b4d9e9e1cf30c9c7e4c61a

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
8d029cf2110284e5b0f3a3d0d0b5767887dde9680b0eec09a05a4527b72ac316

Original bytes (Base64)

OGQwMjljZjIxMTAyODRlNWIwZjNhM2QwZDBiNTc2Nzg4N2RkZTk2ODBiMGVlYzA5YTA1YTQ1MjdiNzJhYzMxNg==

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.