0mega
Since Jul 14, 2022, 0mega has listed 7 organizations on its leak site.
Listings per month
- Total listings
- 7
- First listing
- Jul 14, 2022
- Latest listing
- Jan 25, 2024
- MITRE ATT&CK techniques
- 7
0mega is a double-extortion ransomware group that emerged in May 2022, targeting businesses across multiple sectors worldwide by encrypting files and threatening to leak stolen data; it also pivoted to cloud-based extortion by compromising Microsoft 365 admin accounts.
It posted no listings in the last 12 months.
Most targeted country: United States, with 2 listings (29% of the total).
Most targeted sector: Professional Services, with 3 listings (43% of the total).
Targeted countries
Targeted sectors
Showing 7 of 7 results
7 MITRE ATT&CK techniques across 6 stages are documented in the group's attacks.
- 1
Initial access
The attacker gets into the corporate network for the first time.
T1078Valid Accounts - 2
Privilege escalation
The attacker moves to accounts with higher privileges.
T1136Create Account: Cloud Account - 3
Defense evasion
Security software and logging are bypassed.
T1531Account Access Removal - 4
Collection
Data to be stolen is selected and gathered.
T1119Automated Collection - 5
Exfiltration
Data is moved out of the organization; the threat to publish it in the listing relies on this data.
T1041Exfiltration Over C2 Channel - 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.
How does 0mega get into organizations?
The attacker gets into the corporate network for the first time.
- T1078 · Valid Accounts
Which defenses matter most?
Priority defenses based on the documented techniques:
- Keep internet-facing VPN, remote desktop and firewall interfaces patched, and require multi-factor authentication on these accounts.
- Reduce local administrator accounts and perform privileged tasks from separate, monitored accounts.
- Alert when security software is disabled or logs are cleared.
- Monitor large file archiving operations.
- 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.
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