Cereal2 · Observed attack

AS28140 UDP flood on 187.103.218.0/24 | 2026-10-10 03:27:25Z

· Event #322773

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
2026-10-10T03:27:25.721Z
Recorded

Recorded 135ms after observation

Affected network
187.103.218.0/24
Network operator
G2G INTERNET E SERVICOS DE TELECOM LTDAAS28140
Location
Brazil
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
130.94.1.105130.94.107.174130.94.16.10130.94.17.15130.94.32.14130.94.77.120134.122.68.238137.184.100.23138.68.128.163157.230.254.212167.172.93.168168.144.113.82209.38.240.4438.60.136.14038.60.199.12638.60.238.10943.157.80.2943.166.72.5043.173.102.17343.173.37.19747.237.95.14994.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
0000000037 90 7e 34 a3 00 97 ff7.~4....
00000008d1 6d 93 13 07 3b 1c fa.m...;..
00000010a1 5c 20 72 2d 53 30 cc.\ r-S0.
00000018de 2c 7b 6c 6a 5c 6c 6d.,{lj\lm

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

SHA-256 of decoded template

2a1c0f8be99a466af14ef133651fe2317115ff45ae2520d1adb5e5ff28db766d

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
37907e34a30097ffd16d9313073b1cfaa15c20722d5330ccde2c7b6c6a5c6c6d

Original bytes (Base64)

Mzc5MDdlMzRhMzAwOTdmZmQxNmQ5MzEzMDczYjFjZmFhMTVjMjA3MjJkNTMzMGNjZGUyYzdiNmM2YTVjNmM2ZA==

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.