Winter Vivern is a threat group thought to operate from Russia. Public reporting links it to 22 attack techniques, with 1 country or victim named. This free profile shows how it works and who it targets, so you can judge the risk to you.
Winter Vivern has 4 other names in security research. Below is what published reporting says about it, with a link to every report so you can check the detail yourself.
Also known as
Security companies each give the same group their own name, so one group can have many.
What public reporting says
Winter Vivern is a cyberespionage group first revealed by DomainTools in 2021. It is thought to have been active since at least 2020 and it targets governments in Europe and Central Asia. To compromise its targets, the group uses malicious documents, phishing websites, and a custom PowerShell backdoor.
Public reports about Winter Vivern (8)
Each technique is a known way attackers research, get in, stay hidden or do damage. Here are the 22 linked to Winter Vivern, laid out from first look to final blow. Some techniques belong to more than one stage. Pick a stage to see them. Public reporting also lists 14 more specific variations of them, called sub-techniques.
Finding and bundling up the information they came for.
The sectors and places named in public reporting about this group. If yours is on the list, it is worth knowing how they work and which flaws they use.
Countries and victims named (1)
A public profile tells you who a group is. Your account tells you whether it matters to you: we match the software you run to the flaws threat groups use, and we keep watching, so you hear about anything that affects you as soon as we know.
Winter Vivern is a threat group thought to operate from Russia. Public reporting links it to 22 attack techniques, with 1 country or victim named.
Public reporting places Winter Vivern as operating from Russia. Attribution is never certain: it rests on the tools, infrastructure and targets researchers have seen.
In public reporting, 1 countries and victims are named, including Germany.
Public reporting links Winter Vivern to 22 attack techniques. Most of them are about gathering data, getting in and running code.
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