Cereal2 · Observed attack

AS28665 UDP flood on 177.136.155.0/24 | 2026-10-10 19:51:30Z

· Event #324540

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
2026-10-10T19:51:30.626Z
Recorded

Recorded 143ms after observation

Affected network
177.136.155.0/24
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
0000000012 28 53 05 a8 29 80 14.(S..)..
00000008a6 08 f7 82 9b 3b d4 6e.....;.n
00000010aa 42 53 c1 a9 1e d7 86.BS.....
0000001807 b9 bb 60 d9 fc 16 c1...`....

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

SHA-256 of decoded template

d8e0676ebcd783bae947bab49efbca9866946d033054625d7ed5471ba63c254e

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
12285305a8298014a608f7829b3bd46eaa4253c1a91ed78607b9bb60d9fc16c1

Original bytes (Base64)

MTIyODUzMDVhODI5ODAxNGE2MDhmNzgyOWIzYmQ0NmVhYTQyNTNjMWE5MWVkNzg2MDdiOWJiNjBkOWZjMTZjMQ==

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.