Cereal2 · Observed attack

AS28665 UDP flood on 177.136.142.0/24 | 2026-10-13 10:57:30Z

· Event #328268

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
2026-10-13T10:57:30.920Z
Recorded

Recorded 141ms after observation

Affected network
177.136.142.0/24
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
101.34.239.216119.45.12.154139.59.33.238157.230.127.22159.223.68.251164.90.186.13165.22.152.158170.106.35.197178.128.223.92188.166.12.8206.189.228.1743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5364.227.72.6877.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15995.182.87.134

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
000000001c b8 7e da a8 28 7b f4..~..({.
00000008c1 86 62 2a 2f 8d c1 9b..b*/...
0000001033 f3 33 57 96 66 86 a93.3W.f..
000000181a 71 6d f8 66 4e bb 99.qm.fN..

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

SHA-256 of decoded template

de4fcb187fefa8495d927b614031c3049aa303cd3ac53a0e99ae9d57cb6c6db7

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
1cb87edaa8287bf4c186622a2f8dc19b33f33357966686a91a716df8664ebb99

Original bytes (Base64)

MWNiODdlZGFhODI4N2JmNGMxODY2MjJhMmY4ZGMxOWIzM2YzMzM1Nzk2NjY4NmE5MWE3MTZkZjg2NjRlYmI5OQ==

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.