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Subnet 45.156.87.0/24

SUBNET Active high

Why this campaign was detected

3 IPs from the same /24 subnet (45.156.87.0/24) were observed attacking our sensors within the same time window. All belong to Pfcloud UG (haftungsbeschrankt) (AS51396). Concentrated activity from adjacent IPs is a strong indicator of a single operator or coordinated botnet.

Primary ASN

AS51396 · Pfcloud UG (haftungsbeschrankt)

Subnet

45.156.87.0/24

Country

🇳🇱 NL

Cloud Provider

—

Member Count

3 IPs

Below average

Total Events

8905

Below average by volume

Started / Ended

2026-04-19 06:21 — ongoing

Attack Types

ssh:bruteforce

MITRE ATT&CK Techniques

Reconnaissance

T1595 T1595.002

Initial Access

T1078

Credential Access

T1110 T1110.001

Discovery

T1016 T1046 T1082

Member Actors

IP Address	Behavior	Confidence	Flags	Events	Agents	Attack Types	Hostname	Last Seen
45.156.87.253	credential_harvester	50%	DROP1x OSINT	3918	1	ssh:bruteforce	—	2026-04-27 09:52	evidence →
45.156.87.99	credential_harvester	46%	DROP2x OSINT	3885	1	ssh:bruteforce	—	2026-04-23 00:28	evidence →
45.156.87.209	reconnaissance	34%	DROP	1102	1	ssh:bruteforce	—	2026-04-21 07:38	evidence →

VPN Known VPN or proxy provider

DROP ASN on Spamhaus DROP list

Nx OSINT Corroborated by N external threat feeds