Software

IFrame vulnerability closed

Microsoft has issued another unscheduled patch, for Internet Explorer. It closes the IFrame vulnerability – this was detected on November 2nd, and has been widely exploited by a variety of malware.

The vulnerability does not affect Microsoft Windows XP Service Pack 2, Windows XP 64-Bit Edition Version 2003, Windows Server 2003, or Windows Server 2003 64-Bit Edition.

Users of all other systems should read the vulnerability information on the Microsoft site, download and install the patch.

IFrame vulnerability closed

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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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