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Operation RoundPress

ID: e453430a-747a-56fe-b558-9e22730ba1d2

STIX ID: report--e453430a-747a-56fe-b558-9e22730ba1d2

Feed Name: WeLiveSecurity (ESET Research)

Threat Score
85/100

Date Published: 2025-05-15

Date Updated: 2026-05-01

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**Executive summary:** ESET Research details Operation RoundPress, a Sednit-linked espionage campaign that exploits XSS flaws in Roundcube, Horde, MDaemon (zero-day CVE-2024-11182), and Zimbra to inject SpyPress JavaScript payloads into webmail clients, enabling theft of credentials, emails, contacts, 2FA secrets, creation of app passwords and malicious Sieve rules; the report provides technical analysis, victimology, IoCs and ATT&CK mappings.

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