GDLockerSec

MITRE ATT&CK does not currently catalogue GDLockerSec, 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: medium. Treat it as orientation, not attribution.

1. T1059.001 PowerShell Execution

   What they do: GDLockerSec executes malicious commands via PowerShell to deploy payloads and manipulate system processes.

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

2. T1112 Modify Registry PersistenceDefense Impairment

   What they do: GDLockerSec modifies registry run keys to ensure malware persistence across reboots.

   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.

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

   What they do: GDLockerSec uses registry run keys and startup folders to maintain persistence after system restart.

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

4. T1685 Disable or Modify Tools Defense Impairment

   What they do: GDLockerSec disables antivirus tools and security monitoring by terminating or modifying their processes.

   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. T1027.013 Encrypted/Encoded File Stealth

   What they do: GDLockerSec encrypts or encodes victim files with its own symmetric cipher to render data unusable.

   What that means: Adversaries may encrypt or encode files to obfuscate strings, bytes, and other specific patterns to impede detection.

6. T1070.004 File Deletion Stealth

   What they do: GDLockerSec deletes Volume Shadow Copies and backup directories to prevent data recovery.

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

7. T1083 File and Directory Discovery Discovery

   What they do: GDLockerSec scans file and directory structures to identify critical data for encryption and targeting.

   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.

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

   What they do: GDLockerSec moves laterally via SMB/Windows Admin Shares to compromise additional networked hosts.

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

9. T1486 Data Encrypted for Impact Impact

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

   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: GDLockerSec runs scripts to inhibit system recovery by disabling backup restoration and repair utilities.

    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.

11. T1491.001 Internal Defacement Impact

    What they do: GDLockerSec displays internal defacement messages alongside encrypted files to pressure victims into paying.

    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.