Cereal2 · Observed attack

AS61855 UDP flood on 131.0.6.0/24 | 2026-10-13 00:53:07Z

· Event #327844

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
2026-10-13T00:53:07.592Z
Recorded

Recorded 142ms after observation

Affected network
131.0.6.0/24
Network operator
NOVA NET TECNOLOGIA LTDA - MEAS61855
Location
Brazil
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
101.34.239.216119.45.12.154139.59.33.238157.230.127.22159.223.68.251164.90.186.13165.22.152.158170.106.35.197178.128.223.92188.166.12.8206.189.228.1743.136.129.13143.153.106.22943.157.198.13743.159.46.15564.227.72.6877.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
0000000099 8b bf c7 1b 41 42 ac.....AB.
00000008bc f9 f1 4c ed 83 a8 64...L...d
000000107b 0e b4 31 96 e1 8d 90{..1....
0000001855 65 2b 42 0b 8d c9 80Ue+B....

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

SHA-256 of decoded template

0631c115f3133f71f96436b364add2cd8c94c158e72ee110e1af09add4fb2153

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
998bbfc71b4142acbcf9f14ced83a8647b0eb43196e18d9055652b420b8dc980

Original bytes (Base64)

OTk4YmJmYzcxYjQxNDJhY2JjZjlmMTRjZWQ4M2E4NjQ3YjBlYjQzMTk2ZTE4ZDkwNTU2NTJiNDIwYjhkYzk4MA==

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.