APT41 Resurfaces as Earth Baku With New Cyberespionage Campaign

Trend Micro researchers have uncovered a cyberespionage campaign being perpetrated by Earth Baku, an advanced persistent threat (APT) group with a known history of carrying out cyberattacks under the alias APT41. This is not the group’s first foray into cyberespionage, Read More …

‘DeadRinger’ Targeted Exchange Servers Long Before Discovery

Threat actors linked to China exploited the notorious Microsoft Exchange ProxyLogon vulnerabilities long before they were publicly disclosed, in attacks against telecommunications companies aimed at stealing sensitive customer data and maintaining network persistence, researchers have found. Researchers from Cybereason have Read More …

Lemon Duck hacking group adopts Microsoft Exchange Server vulnerabilities in new attacks

Researchers have explored the latest activities of the Lemon Duck hacking group, including the leverage of Microsoft Exchange Server vulnerabilities and the use of decoy top-level domains. The active exploit of zero-day Microsoft Exchange Server vulnerabilities in the wild was Read More …

FBI nuked web shells from hacked Exchange Servers without telling owners

A court-approved FBI operation was conducted to remove web shells from compromised US-based Microsoft Exchange servers without first notifying the servers’ owners. On March 2nd, Microsoft released a series of Microsoft Exchange security updates for vulnerabilities actively exploited by a Read More …