Act
archived
Russian Espionage Campaign Targets Zimbra via JS Injection
- Engineer — Plan: If your organization runs Zimbra webmail, review the Unit 42 report for any patched CVEs or configuration mitigations tied to this JavaScript injection vector, and audit Zimbra servers for unauthorized script modifications.
- SOC/IR — Act: Pull the full Unit 42 report for IOCs and TTPs, then hunt for anomalous JavaScript execution or unexpected credential harvesting activity in Zimbra server logs since the campaign’s observed start date.
- Leader — Learn: A Russian espionage actor is actively harvesting credentials from enterprise Zimbra deployments — useful context for sector threat briefings, but no immediate leadership action is indicated unless Zimbra is a core part of your environment.
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