Cereal2 · Observed attack

AS53102 UDP flood on 187.103.164.0/23 | 2026-10-13 01:57:07Z

· Event #327895

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
2026-10-13T01:57:07.831Z
Recorded

Recorded 303ms after observation

Affected network
187.103.164.0/23
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
101.34.239.216119.45.12.154139.59.33.238157.230.127.22159.223.68.251164.90.186.13165.22.152.158188.166.12.8206.189.228.1743.136.129.13143.153.106.22943.157.198.13743.159.46.15543.173.37.5364.227.72.6882.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
0000000042 7d db 33 26 21 f7 50B}.3&!.P
0000000890 ea 78 06 c7 f8 26 d4..x...&.
000000107d e4 3e c3 ed 0a 05 7d}.>....}
000000180d 84 8c a9 97 fe f8 cc........

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

SHA-256 of decoded template

29f01bbff0ad752413cfce3cfc66ac1ae3172b7543ad24105d5c0a522cc1352d

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
427ddb332621f75090ea7806c7f826d47de43ec3ed0a057d0d848ca997fef8cc

Original bytes (Base64)

NDI3ZGRiMzMyNjIxZjc1MDkwZWE3ODA2YzdmODI2ZDQ3ZGU0M2VjM2VkMGEwNTdkMGQ4NDhjYTk5N2ZlZjhjYw==

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.