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Subnet 172.71.203.0/24
SUBNET Ended highWhy this campaign was detected
3 IPs from the same /24 subnet (172.71.203.0/24) were observed attacking our sensors within the same time window. All belong to Cloudflare, Inc. (AS13335). Concentrated activity from adjacent IPs is a strong indicator of a single operator or coordinated botnet.
Primary ASN
AS13335 · Cloudflare, Inc.
Subnet
172.71.203.0/24
Country
🇺🇸 US
Cloud Provider
Cloudflare
Member Count
3 IPs
Below average
Total Events
17
Below average by volume
Started / Ended
2026-04-23 08:58 — 2026-07-01 09:27
Attack Types
MITRE ATT&CK Techniques
Member Actors
| IP Address | Behavior | Confidence | Flags | Events | Agents | Attack Types | Hostname | Last Seen | |
|---|---|---|---|---|---|---|---|---|---|
| 172.71.203.104 | web_probe | 18% | 37 | 1 | http:scan | — | 2026-05-25 09:25 | evidence → | |
| 172.71.203.105 | web_probe | 18% | 31 | 1 | http:scan | — | 2026-05-25 00:22 | evidence → | |
| 172.71.203.63 | web_probe | 13% | 1 | 1 | http:scan | — | 2026-04-28 11:49 | evidence → |
VPN Known VPN or proxy provider
DROP ASN on Spamhaus DROP list
Nx OSINT Corroborated by N external threat feeds