Unit 42 details a Russian cyberespionage campaign targeting Zimbra webmail servers using JavaScript injection to steal credentials.

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Dubbed GopherWhisper, the group relies on multiple Go-based backdoors alongside custom loaders and injectors.

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The state-sponsored hackers deployed custom tools and stayed dormant in the compromised environments for months.

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Palo Alto Networks has not attributed the APT activity to any specific country, but evidence points to China.

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The attacks targeting Europe were analyzed by Ukraine’s CERT-UA and the cybersecurity company Zscaler.

The post Russia’s APT28 Rapidly Weaponizes Newly Patched Office Vulnerability  appeared first on SecurityWeek.

10 years after disrupting the Ukrainian power grid, the APT targeted Poland with data-wiping malware.

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US officials told The New York Times that cyberattacks were used to turn off the lights in Caracas and disrupt air defense radars.

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