Cereal2 · Observed attack

AS28665 UDP flood on 177.136.156.0/24 | 2026-10-14 11:16:04Z

· Event #329564

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
2026-10-14T11:16:04.372Z
Recorded

Recorded 139ms after observation

Affected network
177.136.156.0/24
Network operator
Predlink Rede de Telecomunicções LtdaAS28665
Location
Brazil
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
101.34.239.216119.45.12.154170.106.35.19743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15995.182.87.134

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
0000000025 01 e5 79 84 50 b8 f7%..y.P..
0000000860 20 ec 35 a1 d0 fb 0c` .5....
000000107f b4 14 44 ac b2 3f f7...D..?.
000000185d 89 0c 10 53 2d 2a c7]...S-*.

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

SHA-256 of decoded template

31a7773e15f27e52155530e977eaa0ab17a9c714171caa118a3d2207a20f422b

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
2501e5798450b8f76020ec35a1d0fb0c7fb41444acb23ff75d890c10532d2ac7

Original bytes (Base64)

MjUwMWU1Nzk4NDUwYjhmNzYwMjBlYzM1YTFkMGZiMGM3ZmI0MTQ0NGFjYjIzZmY3NWQ4OTBjMTA1MzJkMmFjNw==

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.