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Subnet 81.19.216.0/24
SUBNET Active highWhy this campaign was detected
4 IPs from the same /24 subnet (81.19.216.0/24) were observed attacking our sensors within the same time window. All belong to Hydra Communications Ltd (AS25369). Concentrated activity from adjacent IPs is a strong indicator of a single operator or coordinated botnet.
Primary ASN
AS25369 · Hydra Communications Ltd
Subnet
81.19.216.0/24
Country
🇳🇱 NL
Cloud Provider
—
Member Count
4 IPs
Below average
Total Events
16
Below average by volume
Started / Ended
2026-05-12 03:16 — ongoing
Attack Types
MITRE ATT&CK Techniques
Initial Access
Discovery
Member Actors
| IP Address | Behavior | Confidence | Flags | Events | Agents | Attack Types | Hostname | Last Seen | |
|---|---|---|---|---|---|---|---|---|---|
| 81.19.216.114 | web_probe | 44% | 2x OSINT | 3 | 2 | http:scanssh:bruteforce | — | 2026-07-14 04:28 | evidence → |
| 81.19.216.109 | web_probe | 32% | 1x OSINT | 4 | 1 | http:scanssh:bruteforce | — | 2026-07-14 04:28 | evidence → |
| 81.19.216.87 | scanner | 29% | 1x OSINT | 4 | 2 | ssh:bruteforce | — | 2026-07-13 04:35 | evidence → |
| 81.19.216.73 | scanner | 20% | 1x OSINT | 5 | 1 | ssh:bruteforce | — | 2026-07-13 06:25 | evidence → |
VPN Known VPN or proxy provider
DROP ASN on Spamhaus DROP list
Nx OSINT Corroborated by N external threat feeds