Cereal2 · Observed attack

AS28665 UDP flood on 177.136.143.0/24 | 2026-10-13 10:59:30Z

· Event #328270

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
2026-10-13T10:59:30.933Z
Recorded

Recorded 142ms after observation

Affected network
177.136.143.0/24
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
101.34.239.216139.59.33.238157.230.127.22159.223.68.251164.90.186.13165.22.152.158170.106.35.197188.166.12.8206.189.228.1743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5364.227.72.6877.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.249

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
0000000051 87 76 0f 0a 54 12 fcQ.v..T..
0000000864 31 1d 42 fb 3a 7c fcd1.B.:|.
000000103e f5 c0 68 6e 52 ff 75>..hnR.u
00000018b5 52 23 38 77 f3 89 86.R#8w...

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

SHA-256 of decoded template

15be00945b182f519f0ce8f4939a28b3278a8939f688e5e848d388d3be2fb34c

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
5187760f0a5412fc64311d42fb3a7cfc3ef5c0686e52ff75b552233877f38986

Original bytes (Base64)

NTE4Nzc2MGYwYTU0MTJmYzY0MzExZDQyZmIzYTdjZmMzZWY1YzA2ODZlNTJmZjc1YjU1MjIzMzg3N2YzODk4Ng==

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.