Cereal2 · Observed attack

AS270516 UDP flood on 187.73.181.0/24 | 2026-10-11 00:15:51Z

· Event #324895

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
2026-10-11T00:15:51.199Z
Recorded

Recorded 147ms after observation

Affected network
187.73.181.0/24
Network operator
IZOC SERVICOS DE INTERNET LTDAAS270516
Location
Brazil
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
130.94.1.105130.94.16.10130.94.32.14130.94.77.120137.184.100.23206.189.2.8638.60.136.14038.60.199.12638.60.238.10994.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
000000007e ac dc 2f 5d 32 c5 e3~../]2..
0000000836 c1 6c 4f bb 2e fc ff6.lO....
000000104f 44 7f a9 ad e0 2b 42OD....+B
00000018fa d8 79 65 aa 68 d0 d9..ye.h..

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

SHA-256 of decoded template

b9851ac384d9f5a829c94d09b553fc30ac8d1f86122315609345e8f1be1ad70a

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
7eacdc2f5d32c5e336c16c4fbb2efcff4f447fa9ade02b42fad87965aa68d0d9

Original bytes (Base64)

N2VhY2RjMmY1ZDMyYzVlMzM2YzE2YzRmYmIyZWZjZmY0ZjQ0N2ZhOWFkZTAyYjQyZmFkODc5NjVhYTY4ZDBkOQ==

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.