Megacode

MITRE ATT&CK does not currently catalogue Megacode, so this is our assessment of the techniques it uses, drawn from public reporting. The techniques themselves, and every "what that means" definition below, come from MITRE ATT&CK v19.2. Confidence: low. Treat it as orientation, not attribution.

1. T1078.002 Domain Accounts Initial AccessPersistencePrivilege EscalationStealth

   What they do: megacode exploits valid domain accounts for privilege escalation and lateral movement.

   What that means: Adversaries may obtain and abuse credentials of a domain account as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.

2. T1078.003 Local Accounts Initial AccessPersistencePrivilege EscalationStealth

   What they do: megacode leverages local accounts for initial access and persistence on endpoints.

   What that means: Adversaries may obtain and abuse credentials of a local account as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.

3. T1059.001 PowerShell Execution

   What they do: megacode executes malicious commands via PowerShell scripts on compromised systems.

   What that means: Adversaries may abuse PowerShell commands and scripts for execution.

4. T1547.001 Registry Run Keys / Startup Folder PersistencePrivilege Escalation

   What they do: megacode modifies registry run keys to ensure malware execution on reboot.

   What that means: Adversaries may achieve persistence by adding a program to a startup folder or referencing it with a Registry run key.

5. T1685 Disable or Modify Tools Defense Impairment

   What they do: megacode disables antivirus tools and security software to evade detection.

   What that means: Adversaries may disable, degrade, or tamper with security tools or applications (e.g., endpoint detection and response (EDR) tools, intrusion detection systems (IDS), antivirus, logging agents, sensors, etc.) to impair or reduce visibility of defensive capabilities.

6. T1027 Obfuscated Files or Information Stealth

   What they do: megacode obfuscates its malware binary to evade signature-based detection.

   What that means: Adversaries may attempt to make an executable or file difficult to discover or analyze by encrypting, encoding, or otherwise obfuscating its contents on the system or in transit.

7. T1110 Brute Force Credential Access

   What they do: megacode brute-forces local accounts to gain initial access or persistence.

   What that means: Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.

8. T1057 Process Discovery Discovery

   What they do: megacode discovers running processes to identify services to disrupt or target.

   What that means: Adversaries may attempt to get information about running processes on a system.

9. T1083 File and Directory Discovery Discovery

   What they do: megacode scans file and directory structures to identify targets for encryption.

   What that means: Adversaries may enumerate files and directories or may search in specific locations of a host or network share for certain information within a file system.

10. T1021.002 SMB/Windows Admin Shares Lateral Movement

    What they do: megacode uses SMB/Windows Admin Shares for lateral movement across networked systems.

    What that means: Adversaries may use Valid Accounts to interact with a remote network share using Server Message Block (SMB).

11. T1567 Exfiltration Over Web Service Exfiltration

    What they do: megacode steals victim data before encryption for extortion purposes.

    What that means: Adversaries may use an existing, legitimate external Web service to exfiltrate data rather than their primary command and control channel.

12. T1485 Data Destruction Impact

    What they do: megacode deletes Volume Shadow Copies via vssadmin to prevent data recovery.

    What that means: Adversaries may destroy data and files on specific systems or in large numbers on a network to interrupt availability to systems, services, and network resources.

13. T1486 Data Encrypted for Impact Impact

    What they do: megacode encrypts victim files using a custom ransomware payload to hold data hostage.

    What that means: Adversaries may encrypt data on target systems or on large numbers of systems in a network to interrupt availability to system and network resources.

14. T1489 Service Stop Impact

    What they do: megacode stops critical Windows services to disrupt victim operations.

    What that means: Adversaries may stop or disable services on a system to render those services unavailable to legitimate users.

15. T1490 Inhibit System Recovery Impact

    What they do: megacode runs commands to inhibit system recovery processes after encryption.

    What that means: Adversaries may delete or remove built-in data and turn off services designed to aid in the recovery of a corrupted system to prevent recovery.

16. T1491.001 Internal Defacement Impact

    What they do: megacode displays a ransom note and defaces internal systems to pressure victims.

    What that means: An adversary may deface systems internal to an organization in an attempt to intimidate or mislead users, thus discrediting the integrity of the systems.