Cereal2 · Observed attack

AS28665 UDP flood on 177.136.144.0/24 | 2026-10-14 10:52:04Z

· Event #329541

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
2026-10-14T10:52:04.272Z
Recorded

Recorded 139ms 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
101.34.239.216119.45.12.154170.106.35.19743.136.129.13143.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
00000000fe 9a 5a 1b 13 46 fc 40..Z..F.@
0000000823 0a 5f 8c 0a 8e 7b 52#._...{R
00000010c3 2b 72 d5 6c ca c2 93.+r.l...
00000018ab 83 3b ab cf a6 0a dd..;.....

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

SHA-256 of decoded template

d9bf14d7eb4f0d3c920f5a69f3b5c7ec60672794db5f2051f8af8f2acd214061

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
fe9a5a1b1346fc40230a5f8c0a8e7b52c32b72d56ccac293ab833babcfa60add

Original bytes (Base64)

ZmU5YTVhMWIxMzQ2ZmM0MDIzMGE1ZjhjMGE4ZTdiNTJjMzJiNzJkNTZjY2FjMjkzYWI4MzNiYWJjZmE2MGFkZA==

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.