Lv

MITRE ATT&CK does not currently catalogue Lv, 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: lv executes malicious commands via PowerShell to stage payloads and manipulate system processes.

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

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

   What they do: lv modifies registry run keys to ensure malware execution upon system reboot for persistence.

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

3. T1685 Disable or Modify Tools Defense Impairment

   What they do: lv disables Windows security tools like antivirus software to evade detection and persistence mechanisms.

   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.

4. T1070.004 File Deletion Stealth

   What they do: lv deletes Volume Shadow Copies and backup directories via command-line tools to prevent recovery.

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

5. T1135 Network Share Discovery Discovery

   What they do: lv scans network shares using native tools to identify victim hosts for lateral movement.

   What that means: Adversaries may look for folders and drives shared on remote systems as a means of identifying sources of information to gather as a precursor for Collection and to identify potential systems of interest for Lateral Movement.

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

   What they do: lv exploits SMB/Windows Admin Shares to propagate ransomware across networked victim machines.

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

7. T1486 Data Encrypted for Impact Impact

   What they do: lv encrypts victim files using a custom ransomware payload to maximize impact and extortion leverage.

   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.

8. T1490 Inhibit System Recovery Impact

   What they do: lv halts critical system recovery processes and service restarts to compound operational disruption.

   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.

The note this group leaves on a compromised machine. Click a filename to read it.

=== Welcome to LV ===

[+] What's Happened? [+]

Your files have been encrypted and currently unavailable. You can check it. All files in your system have gfiez7d7x extension. By the way, everything is possible to recover (restore) but you should follow our instructions. Otherwise you can NEVER return your data.

[+] ATTENTION. YOUR DATA 80GB IS LEAKED [+]

All your important documents was downloaded.

Data leaked included:
- Finance
- Accounting
- Bank Documents
- Insurances
- Clients Bases

If you do not contact us within 72 hours, the incident will appear on a public blog read by the U.S. and world media at this link:

http://rbvuetuneohce3ouxjlbxtimyyxokb4btncxjbo44fbgxqy7tskinwad.onion/post/[snip]

[+] What are our guarantees? [+]

It's just a business and we care only about getting benefits. If we don't meet our obligations, nobody will deal with us. It doesn't hold our interest. So you can check the ability to restore your files. For this purpose you should visit our website where you can decrypt one file for free. That is our guarantee.
It doesn't metter for us whether you cooperate with us or not. But if you don't, you'll lose your time and data cause only we have the private key to decrypt your files. In practice - time is much more valuable than money.

[+] How to get access to our website? [+]

Use TOR browser:
  1. Download and install TOR browser from this site: https://torproject.org/
  2. Visit our website: http://l55ysq5qjpin2vq23ul3gc3h62vp4wvenl7ov6fcn65vir7kc7gb5fyd.onion

When you visit our website, put the following data into the input form:
Key:


[snip]

!!! DANGER !!!
DON'T try to change files by yourself, DON'T use any third party software or antivirus solutions to  restore your data - it may entail the private key damage and as a result all your data loss!
!!! !!! !!!
ONE MORE TIME: It's in your best interests to get your files back. From our side we (the best specialists in this sphere) ready to make everything for restoring but please do not interfere.
!!! !!! !!!

Ransom-note text from RansomLook, licensed CC BY 4.0.