Cereal2 · Observed attack

AS28665 UDP flood on 177.136.147.0/24 | 2026-10-14 10:58:04Z

· Event #329547

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
2026-10-14T10:58:04.293Z
Recorded

Recorded 139ms after observation

Affected network
177.136.147.0/24
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
101.34.239.216119.45.12.154170.106.35.19743.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
00000000ff 3a fa 80 d1 2a b7 2d.:...*.-
00000008c0 8d 0a 09 39 7d cd 9a....9}..
0000001055 10 26 61 7d 03 4f 42U.&a}.OB
0000001809 da bb 8c f7 f2 6b 26......k&

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

SHA-256 of decoded template

516676c151a42e6a88307e1cbaf71fe140bf183b0c34009086243b3f5424bb89

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
ff3afa80d12ab72dc08d0a09397dcd9a551026617d034f4209dabb8cf7f26b26

Original bytes (Base64)

ZmYzYWZhODBkMTJhYjcyZGMwOGQwYTA5Mzk3ZGNkOWE1NTEwMjY2MTdkMDM0ZjQyMDlkYWJiOGNmN2YyNmIyNg==

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.