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Storm-1252 is a temporary cluster name used for advanced persistent threat activity associated with in-the-wild exploitation of Cisco IOS XE zero-day vulnerability CVE-2025-20393. The activity has been described as involving unauthenticated remote code execution against enterprise routers and other network infrastructure, creating a high-risk path to compromise perimeter devices and potentially broader enterprise environments. Reported post-compromise tradecraft includes deployment of the AquaShell Python backdoor, indicating follow-on post-exploitation capability beyond initial device access. Based on available reporting, Storm-1252 should be understood as an intrusion cluster tied to exploitation of network edge infrastructure rather than a fully attributed nation-state group with publicly established sponsorship. High-confidence public information currently supports initial access and post-exploitation against Cisco network devices, but does not firmly establish broader victimology, organizational structure, or long-term campaign history beyond this exploitation activity.
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Every observed MITRE ATT&CK technique, grouped by tactic.
Families this actor is known to deploy, with IOCs and behavior.
CVEs this actor has used in known campaigns.
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Domains, IPs, and hashes tied to this actor, refreshed continuously.