Stealthy CastleLoader Malware Attacking US Government Agencies and Critical Infrastructure

Cybersecuritynews •Balaji N • January 14, 2026

A sophisticated malware loader known as CastleLoader has emerged as a critical threat to US government agencies and critical infrastructure organizations. First identified in early 2025, this stealthy malware has been used as the initial access point in coordinated attacks targeting multiple sectors including federal agencies, IT firms, logistics companies, and essential infrastructure providers across […]

The full story

This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.

CastleLoader Malware Targets U.S. Government Entities CastleLoader, a sophisticated malware loader, has been identified as a significant threat to U.S. government agencies and critical infrastructure. This malware is designed to facilitate further attacks by loading additional malicious payloads onto compromised systems. 3 sources 45

Extracted Entities

Stealthy CastleLoader Malware Attacking US Government Agencies and Critical Infrastructure

The full story

Extracted Entities

Attack Types (1)

Industries (1)

Malware (1)