Cereal2 · Observed attack

AS28665 UDP flood on 177.136.139.0/24 | 2026-10-14 10:42:04Z

· Event #329531

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
2026-10-14T10:42:04.234Z
Recorded

Recorded 139ms after observation

Affected network
177.136.139.0/24
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
101.34.239.216119.45.12.154170.106.35.19743.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
0000000061 9d a2 08 4d dc 24 00a...M.$.
0000000838 55 6e 44 48 a2 d3 1b8UnDH...
000000101a cc 78 27 3c b1 e2 b2..x'<...
00000018eb 06 2f 94 4c af aa 50../.L..P

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

SHA-256 of decoded template

21d4c1bfcb7af38de7b6aa6fd79ab593ea84f93acbdf1d6d719ebd2b1a5ed2ac

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
619da2084ddc240038556e4448a2d31b1acc78273cb1e2b2eb062f944cafaa50

Original bytes (Base64)

NjE5ZGEyMDg0ZGRjMjQwMDM4NTU2ZTQ0NDhhMmQzMWIxYWNjNzgyNzNjYjFlMmIyZWIwNjJmOTQ0Y2FmYWE1MA==

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.