Gammax
Since Jul 30, 2026, Gammax has listed 9 organizations on its leak site.
Listings per month
- Total listings
- 9
- First listing
- Jul 30, 2026
- Latest listing
- Sep 29, 2026
- MITRE ATT&CK techniques
- 0
Gammax is a ransomware group that has claimed responsibility for attacks on various organizations, including MTCO in Saudi Arabia, RE/MAX 1st Choice in the USA, and AguAseo in Panama.
It posted 9 listings in the last 12 months; the busiest month was September 2026 (5 listings).
Most targeted country: United States, with 4 listings (44% of the total).
Most targeted sector: Manufacturing, with 3 listings (33% of the total).
Targeted countries
Showing 7 of 9 results
Published reports on this actor:
Source: MISP Galaxy, Malpedia.
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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