Cereal2 · Observed attack

AS53102 UDP flood on 187.103.166.0/23 | 2026-10-13 02:03:07Z

· Event #327900

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
2026-10-13T02:03:07.847Z
Recorded

Recorded 152ms after observation

Affected network
187.103.166.0/23
Network operator
S.I. TELECOM. SERVICOS DE TELEFONIA LTDA EPPAS53102
Location
Brazil
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
101.34.239.216139.59.33.238157.230.127.22159.223.68.251164.90.186.13165.22.152.158170.106.35.197178.128.223.92188.166.12.8206.189.228.1743.153.106.22943.156.101.22864.227.72.6877.232.43.2182.157.209.4194.183.235.1194.183.235.15994.183.235.249

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
00000000c3 39 2f 04 11 50 5a ba.9/..PZ.
0000000841 b2 1b 65 72 46 1e 25A..erF.%
00000010b5 5a 3e 35 41 fc d4 68.Z>5A..h
00000018c4 66 4c 2f 14 48 c8 c0.fL/.H..

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

SHA-256 of decoded template

8d2315668d2177334511b4a73f0d2a5a5c4340d5ff24eaba9033deb05cef0499

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
c3392f0411505aba41b21b6572461e25b55a3e3541fcd468c4664c2f1448c8c0

Original bytes (Base64)

YzMzOTJmMDQxMTUwNWFiYTQxYjIxYjY1NzI0NjFlMjViNTVhM2UzNTQxZmNkNDY4YzQ2NjRjMmYxNDQ4YzhjMA==

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.