Wednesday, October 27, 2021

FamousSparrow: A suspicious hotel guest

Yet another APT group that exploited the ProxyLogon vulnerability in March 2021

ESET researchers have uncovered a new cyberespionage group targeting hotels, governments, and private companies worldwide. We have named this group FamousSparrow and we believe it has been active since at least 2019.

Reviewing telemetry data during our investigation, we realized that FamousSparrow leveraged the Microsoft Exchange vulnerabilities known as ProxyLogon that we described extensively in March 2021. As a …

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