Incidents

A Sober night

As we’ve stated elsewhere, Sober.y is programmed to start updating itself after 00:00 hrs (GMT) on 6th January – that’s tonight.

Although everyone in the antivirus world is watching with baited breath, the anticipated epidemic may not hit for a while. Some of the sites which could host the malicious binary files may be shut down successfully before the trigger time. Additionally, it’s up to the bad guys to choose the real activation date by placing (or not) the update on the net.

In short, no-one can tell exactly what the impact of 6th January on virus history will be.

We always recommend that users be on the lookout for suspicious activity. Given the uncertainty about exactly when Sober will start updating, this is going to be even more important for the next couple of days, or even weeks.

We’re on the lookout, high alert, and will keep you posted.

A Sober night

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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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