Nokoyawa
Since Dec 9, 2022, Nokoyawa has listed 36 organizations on its leak site.
Listings per month
- Total listings
- 36
- First listing
- Dec 9, 2022
- Latest listing
- Aug 4, 2023
- MITRE ATT&CK techniques
- 0
Nokoyawa is a double-extortion ransomware group that launched a RaaS program in 2022 (operated by threat actor "farnetwork"), primarily targeting businesses in South America across healthcare, financial services, government, and manufacturing, gaining significant attention in 2023 for exploiting a Windows CLFS zero-day (CVE-2023-28252).
It posted no listings in the last 12 months.
Most targeted country: United States, with 4 listings (11% of the total).
Most targeted sector: Healthcare, with 7 listings (19% of the total).
Targeted countries
Showing 10 of 36 results
What does a ransomware group do?
Ransomware groups break into corporate networks, move data out and encrypt systems. If the ransom is not paid, they list the organization on a leak site and threaten to publish the data.
What should you do if your organization is listed on a leak site?
- Record the listing and any published sample files; do not visit the leak site from the corporate network.
- Isolate affected systems and preserve logs without deleting them.
- Determine which data left the organization; if personal data is involved, review notification obligations with your legal team.
- Make any decision about the ransom demand together with legal, management and incident response.
- Do not bring systems back online before the attacker’s entry point is closed.
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