Cereal2 · Observed attack

AS28665 UDP flood on 177.136.131.0/24 | 2026-10-10 20:39:50Z

· Event #324604

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
2026-10-10T20:39:50.318Z
Recorded

Recorded 149ms after observation

Affected network
177.136.131.0/24
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
130.94.1.105130.94.107.174130.94.16.10130.94.17.15130.94.32.14130.94.77.120137.184.100.23206.189.2.8638.60.136.14038.60.199.12638.60.238.10994.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
0000000059 7c 95 cb be 6b fe ceY|...k..
00000008c2 9c ea e5 eb 03 14 59.......Y
0000001025 47 8f 24 45 d8 36 34%G.$E.64
000000182a 9a e1 70 dd 85 db 4e*..p...N

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

SHA-256 of decoded template

17f4b0bddd5b9a7565ebe5adcf89c5033b74e885680d8e77d439b9f20755c3e3

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
597c95cbbe6bfecec29ceae5eb03145925478f2445d836342a9ae170dd85db4e

Original bytes (Base64)

NTk3Yzk1Y2JiZTZiZmVjZWMyOWNlYWU1ZWIwMzE0NTkyNTQ3OGYyNDQ1ZDgzNjM0MmE5YWUxNzBkZDg1ZGI0ZQ==

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.