AT&S
nokoyawa listed this organization on its leak site on Jul 29, 2023.
- Listing date
- Jul 29, 2023
- Attack date
- Jul 29, 2023
Listing text
AT&S was incorporated in Singapore in 2009 with the goal to provide the entire spectrum of products and services to the Oil & Gas and Marine sectors, bringing AquaTerra and SSH together in a synergistic manner. At formation, we became the only Singapore-based company and one of the largest in the...
About the group
nokoyawa posted its first listing on Dec 9, 2022 and has listed 36 organizations to date.
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).
Learning center
What does this listing mean?
Ransomware groups move data out of the organization before encrypting systems and threaten to publish it if the ransom is not paid. This method is called double extortion.
The listing shows that the group claims to have targeted the organization. Whether the data was published is shown by the later status of the listing.
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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