Cereal2 · Observed attack

AS28665 UDP flood on 177.136.139.0/24 | 2026-10-10 20:51:50Z

· Event #324621

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
2026-10-10T20:51:50.350Z
Recorded

Recorded 392ms after observation

Affected network
177.136.139.0/24
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
130.94.1.105130.94.107.174130.94.16.10130.94.17.15130.94.32.14130.94.77.120137.184.100.23206.189.2.8638.60.136.14038.60.199.12638.60.238.10994.183.235.1194.183.235.14294.183.235.15995.182.87.134

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
0000000003 29 a8 d6 92 d0 af 3f.).....?
000000083f 6f 30 de f5 22 41 3a?o0.."A:
000000105c 7b a9 93 f8 b7 bf 9b\{......
00000018d5 89 ba 1f 1e 35 e6 37.....5.7

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

SHA-256 of decoded template

3aac57911dd50906b11b42bd996c3c7542c14007d60575d5738ef25a464e7f4c

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
0329a8d692d0af3f3f6f30def522413a5c7ba993f8b7bf9bd589ba1f1e35e637

Original bytes (Base64)

MDMyOWE4ZDY5MmQwYWYzZjNmNmYzMGRlZjUyMjQxM2E1YzdiYTk5M2Y4YjdiZjliZDU4OWJhMWYxZTM1ZTYzNw==

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.