Threeam
Since Sep 14, 2023, Threeam has listed 108 organizations on its leak site.
Listings per month
- Total listings
- 108
- First listing
- Sep 14, 2023
- Latest listing
- Oct 9, 2026
- MITRE ATT&CK techniques
- 11
A new Ransomware family identified by the name '3AM' or 'ThreeAM' in September 2023. The ransomware operation was observed by the Symantec team, in which a ransomware affiliate attempted to deploy another ransomware, LockBit, on the target network and then switched to 3AM when LockBit was reportedly blocked. > > The ransomware operation, according to the publication on its Tor-based website, has been operating since mid-August 2023, according to the publication from its first victim.
It posted 44 listings in the last 12 months; the busiest month was September 2026 (15 listings).
Also known as: 3Am
Most targeted country: United States, with 45 listings (42% of the total).
Most targeted sector: Manufacturing, with 22 listings (20% of the total).
Targeted countries
Showing 10 of 108 results
11 MITRE ATT&CK techniques across 6 stages are documented in the group's attacks.
- 1
Persistence
Access survives reboots and password changes.
T1136Create Account - 2
Privilege escalation
The attacker moves to accounts with higher privileges.
T1543.003Service ExecutionT1548.002Bypass User Account Control - 3
Defense evasion
Security software and logging are bypassed.
T1070.001Clear Windows Event LogsT1562.004Disable or Modify System Firewall Settings - 4
Discovery
Systems, accounts and data on the network are mapped.
T1018Remote System DiscoveryT1135Network Share DiscoveryT1615Group Policy Discovery - 5
Exfiltration
Data is moved out of the organization; the threat to publish it in the listing relies on this data.
T1048Exfiltration Over Alternative Protocol - 6
Impact
Systems are encrypted or services are stopped.
T1486Data Encrypted for ImpactT1490Inhibit System Recovery
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.
Which defenses matter most?
Priority defenses based on the documented techniques:
- Monitor newly created services, scheduled tasks and startup entries.
- Reduce local administrator accounts and perform privileged tasks from separate, monitored accounts.
- Alert when security software is disabled or logs are cleared.
- Monitor accounts that run many queries in a short time and unusual network scans.
- Monitor unusual data volumes sent to cloud storage and file transfer services.
- Keep offline, immutable backups and test restores regularly.
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.
Is your organization mentioned?
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