Cereal2 · Observed attack

AS53102 UDP flood on 187.103.172.0/24 | 2026-10-13 10:05:30Z

· Event #328217

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
2026-10-13T10:05:30.664Z
Recorded

Recorded 139ms 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
101.34.239.216119.45.12.154139.59.33.238157.230.127.22159.223.68.251164.90.186.13165.22.152.158170.106.35.197188.166.12.8206.189.228.1743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5364.227.72.6882.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
00000000f8 0c a1 67 32 d5 0e 0f...g2...
00000008c7 d9 ea 80 34 99 b9 bf....4...
00000010de 95 d1 3e 4c 83 b9 e4...>L...
0000001878 1e 6e 75 9c 1f 94 b8x.nu....

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

SHA-256 of decoded template

4ae2c520b9079f18229eacfefcd80cb1b69d1800a2fd901a90ff91b3028a122b

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
f80ca16732d50e0fc7d9ea803499b9bfde95d13e4c83b9e4781e6e759c1f94b8

Original bytes (Base64)

ZjgwY2ExNjczMmQ1MGUwZmM3ZDllYTgwMzQ5OWI5YmZkZTk1ZDEzZTRjODNiOWU0NzgxZTZlNzU5YzFmOTRiOA==

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.