Cereal2 · Observed attack

AS53102 UDP flood on 187.103.172.0/23 | 2026-10-13 10:03:30Z

· Event #328215

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
2026-10-13T10:03:30.651Z
Recorded

Recorded 374ms after observation

Affected network
187.103.172.0/23
Network operator
S.I. TELECOM. SERVICOS DE TELEFONIA LTDA EPPAS53102
Location
Brazil
Method
Configurable custom-payload UDP floodVector 19
Protocol
udp
Destination port
Randomized
Commanded duration
1m
Observed via
101.34.239.216119.45.12.154139.59.33.238157.230.127.22159.223.68.251165.22.152.158170.106.35.197188.166.12.8206.189.228.1743.136.129.13143.156.101.22843.157.198.13743.159.46.15543.173.37.5364.227.72.6894.183.235.1194.183.235.14294.183.235.24995.182.87.134

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
000000005c 5f 92 05 d3 0c c6 71\_.....q
0000000866 e8 92 eb 97 10 0e 95f.......
0000001087 0a 0f c0 46 e4 d0 97....F...
000000186e 98 30 32 fd 8d b1 e3n.02....

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

SHA-256 of decoded template

521f9d8d7c10adb62c5ef94199a876d1d484ca44a7c7a8c8dc69eff3a46b0c7b

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
5c5f9205d30cc67166e892eb97100e95870a0fc046e4d0976e983032fd8db1e3

Original bytes (Base64)

NWM1ZjkyMDVkMzBjYzY3MTY2ZTg5MmViOTcxMDBlOTU4NzBhMGZjMDQ2ZTRkMDk3NmU5ODMwMzJmZDhkYjFlMw==

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.