Cereal2 · Observed attack

AS28665 UDP flood on 177.136.153.0/24 | 2026-10-14 11:10:04Z

· Event #329558

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
2026-10-14T11:10:04.329Z
Recorded

Recorded 141ms after observation

Affected network
177.136.153.0/24
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
101.34.239.216170.106.35.19743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
0000000036 58 f0 62 27 cd 6a 576X.b'.jW
000000083c 19 82 33 f2 53 0d 7f<..3.S..
00000010c3 02 77 3d 65 d5 8a 30..w=e..0
00000018e5 48 8a cc 52 35 a2 a6.H..R5..

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

SHA-256 of decoded template

d5e7d06482ed5d8163ba6c9eca749a96807e611c2511b29cb080c50731b45521

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
3658f06227cd6a573c198233f2530d7fc302773d65d58a30e5488acc5235a2a6

Original bytes (Base64)

MzY1OGYwNjIyN2NkNmE1NzNjMTk4MjMzZjI1MzBkN2ZjMzAyNzczZDY1ZDU4YTMwZTU0ODhhY2M1MjM1YTJhNg==

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.