Cereal2 · Observed attack

AS53102 UDP flood on 187.103.173.0/24 | 2026-10-13 02:25:07Z

· Event #327920

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
2026-10-13T02:25:07.999Z
Recorded

Recorded 144ms after observation

Affected network
187.103.173.0/24
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
101.34.239.216119.45.12.154139.59.33.238159.223.68.251164.90.186.13165.22.152.158170.106.35.197178.128.223.92188.166.12.843.136.129.13143.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5377.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15995.182.87.134

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
0000000056 15 c9 57 04 14 66 83V..W..f.
0000000857 61 b9 91 53 99 2e 90Wa..S...
0000001011 d4 4d 26 aa 3e 7f 4a..M&.>.J
0000001825 a3 76 0b 99 a5 9f eb%.v.....

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

SHA-256 of decoded template

bab67c04f327a6c992a60d46aff77a2a75587bc18ca68381bca3a362570a8213

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
5615c957041466835761b99153992e9011d44d26aa3e7f4a25a3760b99a59feb

Original bytes (Base64)

NTYxNWM5NTcwNDE0NjY4MzU3NjFiOTkxNTM5OTJlOTAxMWQ0NGQyNmFhM2U3ZjRhMjVhMzc2MGI5OWE1OWZlYg==

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.