Software

LNK patch is out

Just a short notice and heads-up to all – the Microsoft Security Bulletin MS10-046 which deals with the LNK vulnerability originally exploited by Stuxnet is now out. If you haven’t patched yet, you should. This is a critical vulnerability which is being actively exploited in the wild.

At the same time, we have received some reports which seem to indicate some problems with applying the MS10-046 patch: during the first reboot, the Explorer CPU usage goes skyhigh and it needs to be restarted to work.

Please let us know if you encounter issues applying this critical patch from Microsoft or if it just worked out fine.

LNK patch is out

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Reports

MoonBounce: the dark side of UEFI firmware

At the end of 2021, we inspected UEFI firmware that was tampered with to embed a malicious code we dub MoonBounce. In this report we describe how the MoonBounce implant works and how it is connected to APT41.

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