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Permanent link Tool: Egregor

NamesEgregor
CategoryMalware
TypeRansomware, Big Game Hunting
Description(Malwarebytes) Egregor ransomware is a relatively new ransomware (first spotted in September 2020) that seems intent on making its way to the top right now. Egregor is considered a variant of Ransom.Sekhmet based on similarities in obfuscation, API-calls, and the ransom note.

As we’ve reported in the past, affiliates that were using Maze ransomware started moving over to Egregor even before the Maze gang officially announced they were calling it quits.
Information<https://blog.malwarebytes.com/ransomware/2020/12/threat-profile-egregor-ransomware-is-making-a-name-for-itself/>
<https://www.cybereason.com/blog/cybereason-vs-egregor-ransomware>
<https://securelist.com/targeted-ransomware-encrypting-data/99255/>
<https://blog.minerva-labs.com/egregor-ransomware-an-in-depth-analysis>
<https://www.trendmicro.com/en_us/research/20/l/egregor-ransomware-launches-string-of-high-profile-attacks-to-en.html>
<https://www.ic3.gov/Media/News/2021/210108.pdf>
<https://assets.sentinelone.com/labs/Egregor>
<https://www.cert.ssi.gouv.fr/uploads/CERTFR-2021-CTI-007.pdf>
<https://www.csoonline.com/article/3602148/egregor-ransomware-group-explained-and-how-to-defend-against-it.html>
<https://www.group-ib.com/whitepapers/egregor-ransomware.html>
<https://securityintelligence.com/posts/egregor-ransomware-negotiations-uncovered/>
Malpedia<https://malpedia.caad.fkie.fraunhofer.de/details/win.egregor>
AlienVault OTX<https://otx.alienvault.com/browse/pulses?q=tag:egregor>

Last change to this tool card: 09 August 2021

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All groups using tool Egregor

ChangedNameCountryObserved

APT groups

 Mallard Spider[Unknown]2008-Dec 2020 
 TA2101, Maze Team[Unknown]2019-Mar 2021X

2 groups listed (2 APT, 0 other, 0 unknown)

Thailand Computer Emergency Response Team (ThaiCERT)
Electronic Transactions Development Agency

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