Incidents

New GpCode spreading

Two hours ago we started receiving multiple emails from users with encrypted documents.

Virus.Win32.GpCode.ae is responsible for this outbreak – this is a new variant of something we’ve reported on before. It’s currently affecting Russian Internet users and doesn’t seem to be spreading in the West.

This encryptor is detected with detection for the previous version of this program – Virus.Win32.GpCode.ad.

In comparison to the previous version, one of the main differences is that the encryption algorithm used is stronger – the previous version used RSA 67 bit, but this one uses RSA 260 bit. We’re working on the decryption algorithm.

We’ll update you as we get more information.

New GpCode spreading

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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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