Cereal2 · Observed attack

AS53102 UDP flood on 187.103.172.0/24 | 2026-10-13 02:23:07Z

· Event #327918

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
2026-10-13T02:23:07.930Z
Recorded

Recorded 142ms after observation

Affected network
187.103.172.0/24
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
101.34.239.216119.45.12.154139.59.33.238157.230.127.22159.223.68.251164.90.186.13165.22.152.158170.106.35.197178.128.223.92188.166.12.843.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5364.227.72.6877.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
000000009e 56 3b a5 3f 0c 43 8d.V;.?.C.
00000008af 78 22 7f 0c af bf 70.x"....p
0000001064 39 f4 3a 7e e7 ff 1bd9.:~...
0000001869 eb e8 dd d8 db 17 a3i.......

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

SHA-256 of decoded template

4a81a5bb0c78e1f0b51b76b402df10e4de92115c94a56d2ef1d25c9ba233aa53

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
9e563ba53f0c438daf78227f0cafbf706439f43a7ee7ff1b69ebe8ddd8db17a3

Original bytes (Base64)

OWU1NjNiYTUzZjBjNDM4ZGFmNzgyMjdmMGNhZmJmNzA2NDM5ZjQzYTdlZTdmZjFiNjllYmU4ZGRkOGRiMTdhMw==

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.