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June 21, 2022

Russia's APT28 uses fear of nuclear war to spread Follina docs in Ukraine

Threat actors associated with Russian intelligence are using the fear or nuclear war to spread data-stealing malware in Ukraine.

Emotet SMB spreader overview

Emotet is back in business and it’s revealing some new tricks. Not long ago, Emotet introduced a new module, the Google Chrome’s credit card grabber. More recently, the SMB spreader module has been brought back and is now, once again, part of the infection chain.

Project Zero: An Autopsy on a Zombie In-the-Wild 0-day

Whenever there’s a new in-the-wild 0-day disclosed, I’m very interested in understanding the root cause of the bug. This allows us to then understand if it was fully fixed, look for variants, and brainstorm new mitigations. This blog is the story of a “zombie” Safari 0-day and how it came back from the dead to be disclosed as exploited in-the-wild in 2022. CVE-2022-22620 was initially fixed in 2013, reintroduced in 2016, and then disclosed as exploited in-the-wild in 2022. If you’re interested in the full root cause analysis for CVE-2022-22620, we’ve published it here.

Zero Day Initiative — CVE-2022-23088: Exploiting a Heap Overflow in the FreeBSD Wi-Fi Stack

In April of this year, FreeBSD patched a 13-year-old heap overflow in the Wi-Fi stack that could allow network-adjacent attackers to execute arbitrary code on affected installations of FreeBSD Kernel. This bug was originally reported to the ZDI program by a researcher known as m00nbsd and patched in