Cereal2 · Observed attack

AS28665 UDP flood on 177.136.149.0/24 | 2026-10-14 11:02:04Z

· Event #329550

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
2026-10-14T11:02:04.326Z
Recorded

Recorded 139ms after observation

Affected network
177.136.149.0/24
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
00000000ef 95 e8 51 ce e0 b9 aa...Q....
0000000885 89 0a 21 b9 be bb 70...!...p
00000010e5 87 5a 0a fe d2 f1 40..Z....@
00000018d6 81 1b af 3e 1c ac 5d....>..]

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

SHA-256 of decoded template

c8a166bcfad8fa748623933b9b646e945e792911129d54ae8d8a25d66990b367

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
ef95e851cee0b9aa85890a21b9bebb70e5875a0afed2f140d6811baf3e1cac5d

Original bytes (Base64)

ZWY5NWU4NTFjZWUwYjlhYTg1ODkwYTIxYjliZWJiNzBlNTg3NWEwYWZlZDJmMTQwZDY4MTFiYWYzZTFjYWM1ZA==

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.