L Group

MITRE ATT&CK does not currently catalogue L Group, 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 v20.0. Confidence: medium. Treat it as orientation, not attribution.

1. T1047 Windows Management Instrumentation Execution

   What they do: L Group uses Windows Management Instrumentation to execute remote commands and maintain initial foothold.

   What that means: Adversaries may abuse Windows Management Instrumentation (WMI) to execute malicious commands and payloads.

2. T1059.001 PowerShell Execution

   What they do: L Group executes malicious payloads through PowerShell scripts stored in temporary directories to stage ransomware.

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

3. T1112 Modify Registry PersistenceDefense Impairment

   What they do: L Group modifies Windows Registry Run keys to ensure ransomware execution after reboot.

   What that means: Adversaries may interact with the Windows Registry as part of a variety of other techniques to aid in defense evasion, persistence, and execution.

4. T1685 Disable or Modify Tools Defense Impairment

   What they do: L Group disables antivirus tools by terminating security processes and modifying Windows Defender service configurations.

   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.

5. T1070.004 File Deletion Stealth

   What they do: L Group deletes Volume Shadow Copy and backup directories using vssadmin commands to prevent recovery.

   What that means: Adversaries may delete files left behind by the actions of their intrusion activity.

6. T1083 File and Directory Discovery Discovery

   What they do: L Group uses file and directory discovery via PowerShell to enumerate user documents and system folders before 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.

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

   What they do: L Group moves laterally through SMB/Windows Admin Shares to compromise additional networked machines.

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

8. T1560.001 Archive via Utility Collection

   What they do: L Group archives victim data using built-in utility commands before exfiltration for extortion leverage.

   What that means: Adversaries may use utilities to compress and/or encrypt collected data prior to exfiltration.

9. T1486 Data Encrypted for Impact Impact

   What they do: L Group encrypts victim files using custom symmetric encryption routines targeting documents, images, and backups.

   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.

10. T1490 Inhibit System Recovery Impact

    What they do: L Group inhibits system recovery by corrupting restore points and disabling backup service restoration.

    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.