Cereal2 · Observed attack

AS270516 UDP flood on 187.73.181.0/24 | 2026-10-10 04:27:26Z

· Event #322943

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
2026-10-10T04:27:26.064Z
Recorded

Recorded 563ms after observation

Affected network
187.73.181.0/24
Network operator
IZOC SERVICOS DE INTERNET LTDAAS270516
Location
Brazil
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
130.94.1.105130.94.107.174130.94.16.10130.94.17.15130.94.32.14130.94.77.120134.122.68.238137.184.100.23138.68.128.163157.230.254.212168.144.113.82206.189.2.8638.60.199.12638.60.238.10943.157.80.2943.173.37.19747.237.95.14994.183.235.1194.183.235.14294.183.235.15994.183.235.249

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
000000005b 22 0b 42 79 63 cc 49[".Byc.I
0000000836 59 c9 fb ee a7 ee 606Y.....`
0000001062 ff 48 97 33 3e 80 85b.H.3>..
00000018e9 66 7d 28 ed 3d 13 92.f}(.=..

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

SHA-256 of decoded template

3e7ad3a84363d74ceee2a7d8341ce1789ae82e68e1564616ab6fbeca24bfc60f

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
5b220b427963cc493659c9fbeea7ee6062ff4897333e8085e9667d28ed3d1392

Original bytes (Base64)

NWIyMjBiNDI3OTYzY2M0OTM2NTljOWZiZWVhN2VlNjA2MmZmNDg5NzMzM2U4MDg1ZTk2NjdkMjhlZDNkMTM5Mg==

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.