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

The leap of a Cycldek-related threat actor

The investigation described in this article started with one such file which caught our attention due to the various improvements it brought to this well-known infection vector.

Lazarus targets defense industry with ThreatNeedle

In mid-2020, we realized that Lazarus was launching attacks on the defense industry using the ThreatNeedle cluster, an advanced malware cluster of Manuscrypt (a.k.a. NukeSped). While investigating this activity, we were able to observe the complete life cycle of an attack, uncovering more technical details and links to the group’s other campaigns.

Sunburst backdoor – code overlaps with Kazuar

While looking at the Sunburst backdoor, we discovered several features that overlap with a previously identified backdoor known as Kazuar. Our observations shows that Kazuar was used together with Turla tools during multiple breaches in past years.

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