Cereal2 · Observed attack

AS53102 UDP flood on 187.103.172.0/23 | 2026-10-13 02:21:07Z

· Event #327916

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
2026-10-13T02:21:07.923Z
Recorded

Recorded 142ms after observation

Affected network
187.103.172.0/23
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
101.34.239.216139.59.33.238157.230.127.22159.223.68.251164.90.186.13165.22.152.158170.106.35.197178.128.223.92188.166.12.843.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5364.227.72.6877.232.43.2182.157.209.4194.183.235.1194.183.235.15994.183.235.24995.182.87.134

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
00000000a9 ae 05 72 a4 0e 08 67...r...g
0000000849 f4 40 f7 47 07 3b 7aI.@.G.;z
00000010ad 16 9b 25 ca 52 49 96...%.RI.
00000018dc 90 b9 a1 d2 39 19 b8.....9..

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

SHA-256 of decoded template

1331346cef2137426f27d8ff491cd6058468afe6f85b76793ac56d31ca21eb13

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
a9ae0572a40e086749f440f747073b7aad169b25ca524996dc90b9a1d23919b8

Original bytes (Base64)

YTlhZTA1NzJhNDBlMDg2NzQ5ZjQ0MGY3NDcwNzNiN2FhZDE2OWIyNWNhNTI0OTk2ZGM5MGI5YTFkMjM5MTliOA==

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.