Cereal2 · Observed attack

AS53102 UDP flood on 187.103.168.0/24 | 2026-10-13 02:11:07Z

· Event #327906

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
2026-10-13T02:11:07.884Z
Recorded

Recorded 591ms after observation

Affected network
187.103.168.0/24
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
101.34.239.216139.59.33.238157.230.127.22164.90.186.13178.128.223.92188.166.12.8206.189.228.1743.153.106.22943.156.101.22843.157.198.13743.159.46.15543.173.37.5364.227.72.6877.232.43.2182.157.209.4194.183.235.1194.183.235.14294.183.235.15994.183.235.24995.182.87.134

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
00000000b1 fe 7a 22 ed 0e 1c 80..z"....
00000008c0 80 e1 c5 eb 1e 04 8c........
000000106e f3 5b 3f e0 9d 1c b6n.[?....
000000188d 20 b8 d5 33 6b 7f 15. ..3k..

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

SHA-256 of decoded template

55fc50efe89518e13048d2f20ac1d47978df89c11abbfc38b6a1156edcc94531

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
b1fe7a22ed0e1c80c080e1c5eb1e048c6ef35b3fe09d1cb68d20b8d5336b7f15

Original bytes (Base64)

YjFmZTdhMjJlZDBlMWM4MGMwODBlMWM1ZWIxZTA0OGM2ZWYzNWIzZmUwOWQxY2I2OGQyMGI4ZDUzMzZiN2YxNQ==

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.