Overview A new campaign tracked as UAC‑0247 is actively targeting hospitals and local governments, stealing browser and WhatsApp data. The attackers are focusing on municipal healthcare institutions across Ukraine, highlighting how critical services remain prime targets for cyber espionage.
Campaign Summary
- Threat actor: UAC‑0247, a cluster linked to cyber espionage.
- Targets: Hospitals, municipal healthcare institutions, and local government agencies.
- Data stolen: Browser data, WhatsApp communications, and potentially sensitive patient or administrative records.
- Timeline: Active since early 2026, with ongoing campaigns reported in April 2026.
Technical Breakdown
- Attack vector: Likely phishing emails or malicious downloads aimed at healthcare staff and government employees.
- Payloads: Malware designed to extract browser credentials, cookies, and WhatsApp session data.
- Persistence: Attackers maintain long‑term access by exploiting weak endpoint defenses and outdated systems.
- Infrastructure: Command‑and‑control servers coordinate data exfiltration and maintain stealth.
Risks to Healthcare & Government
- Patient data exposure: Sensitive medical records could be leaked or sold.
- Operational disruption: Hospitals risk downtime if systems are compromised.
- Government data theft: Confidential communications and citizen records may be exfiltrated.
- Trust erosion: Breaches in healthcare and government undermine public confidence.
Defensive Guidance
- Patch systems: Ensure healthcare and government IT infrastructure is updated against known vulnerabilities.
- Strengthen endpoint security: Deploy advanced EDR solutions to detect abnormal behavior.
- Multi‑factor authentication (MFA): Protect browser and messaging accounts with MFA.
- Network segmentation: Limit lateral movement by isolating critical systems.
- Staff awareness: Train employees to recognize phishing attempts and suspicious downloads.
Final Thought
The UAC‑0247 campaign is a stark reminder that critical services like healthcare and government remain high‑value targets. By stealing browser and WhatsApp data, attackers gain both operational intelligence and personal information. For defenders, the lesson is clear: proactive patching, endpoint monitoring, and staff training are essential to safeguard institutions that citizens depend on daily.
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