Cereal2 · Observed attack

AS28665 UDP flood on 177.136.156.0/24 | 2026-10-10 21:25:50Z

· Event #324669

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
2026-10-10T21:25:50.512Z
Recorded

Recorded 137ms 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
130.94.1.105130.94.107.174130.94.17.15130.94.32.14130.94.77.120137.184.100.23206.189.2.8638.60.136.14038.60.199.12638.60.238.10994.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
00000000de e2 b8 88 0c 09 78 31......x1
0000000871 54 1a 1a e0 c4 10 09qT......
0000001040 c9 e9 b5 0a 31 23 6a@....1#j
00000018e6 47 dd 3b 56 8f a7 49.G.;V..I

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

SHA-256 of decoded template

1e82f11e4190c8a9500c8ead530243b4b5f9d4d1abcc741c44c01c29bbc0b564

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
dee2b8880c09783171541a1ae0c4100940c9e9b50a31236ae647dd3b568fa749

Original bytes (Base64)

ZGVlMmI4ODgwYzA5NzgzMTcxNTQxYTFhZTBjNDEwMDk0MGM5ZTliNTBhMzEyMzZhZTY0N2RkM2I1NjhmYTc0OQ==

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.