Cereal2 · Observed attack

AS53107 UDP flood on 131.100.228.0/24 | 2026-10-13 17:53:33Z

· Event #328581

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
2026-10-13T17:53:33.244Z
Recorded

Recorded 264ms after observation

Affected network
131.100.228.0/24
Network operator
EVEO S.A.AS53107
Location
Brazil
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
101.34.239.216119.45.12.154170.106.35.19743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
00000000b7 cc 6c 88 d1 1e f5 43..l....C
00000008f2 ca 3a f3 ee f3 3d 90..:...=.
0000001086 cd 74 d4 df a2 ef e1..t.....
0000001887 d6 e7 d9 e5 32 f4 04.....2..

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

SHA-256 of decoded template

35e980d225db789d5fbb7b0ea0be9b4278acb4922f93c70754b6865b3e2f936d

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
b7cc6c88d11ef543f2ca3af3eef33d9086cd74d4dfa2efe187d6e7d9e532f404

Original bytes (Base64)

YjdjYzZjODhkMTFlZjU0M2YyY2EzYWYzZWVmMzNkOTA4NmNkNzRkNGRmYTJlZmUxODdkNmU3ZDllNTMyZjQwNA==

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.