Incidents

New unpatched Windows vulnerabilities

Three new MS Windows vulnerabilties have been published, along with ‘Proof of Concept’ exploit codes.
All vulnerabilties reported are targeted at NT based systems, NT, 2000, 2003 and XP.

This involves one overflow in Windows its winhlp32.exe file, which is used to open .hlp files.
The other vulnerabilities don’t affect Windows XP/SP2, showing again that XP/SP2 seems to be more secure than previous versions.

This includes a vulnerability with which a specially crafted .bmp, .cur, .ico or .ani file can cause arbitrary code to be run.
The other vulnerability is a DoS, a specially crafted .ani file can cause the system to crash.

An ‘arbitrary code exection’ vulnerability, which can be considered extremely critical, released one day before Christmas, not an ideal situation to say the least.
Yet another reason to be even more careful these holidays.

New unpatched Windows vulnerabilities

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Reports

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.

Lazarus covets COVID-19-related intelligence

As the COVID-19 crisis grinds on, some threat actors are trying to speed up vaccine development by any means available. We have found evidence that the Lazarus group is going after intelligence that could help these efforts by attacking entities related to COVID-19 research.

Sunburst: connecting the dots in the DNS requests

We matched private and public DNS data for the SUNBURST-malware root C2 domain with the CNAME records, to identify who was targeted for further exploitation. In total, we analyzed 1722 DNS records, leading to 1026 unique target name parts and 964 unique UIDs.

What did DeathStalker hide between two ferns?

While tracking DeathStalker’s Powersing-based activities in May 2020, we detected a previously unknown implant that leveraged DNS over HTTPS as a C2 channel, as well as parts of its delivery chain. We named this new malware “PowerPepper”.

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