# Juntadeandalucia hit by MedusaLocker ransomware

Published: 2026-09-28 · Severity: high · Sectors: government-national
Canonical: https://vorant.io/reports/27816d3c-c7e8-59e8-af5d-e255e183e24e/juntadeandalucia-hit-by-medusalocker-ransomware

> MedusaLocker ransomware operators claim compromise of Spanish regional government with 54,882 user accounts exposed.

Juntadeandalucia, the regional government of Andalusia in Spain, has been listed as a victim by MedusaLocker ransomware operators. According to the ransomware.live tracking site, the incident resulted in compromise of 2,216 employee accounts and exposure of 54,882 user accounts total, along with 930 third-party employee credentials. The attackers report access to 200 external attack surface points and DNS records from the victim's domain. This incident demonstrates the ongoing targeting of government entities by ransomware-as-a-service operations and the broad credential exposure that typically precedes ransomware deployment.

## Mentioned in this report

- Threat actors: medusalocker
- Malware: MedusaLocker

## Detection guidance (public sample)

### Rclone Bulk Data Transfer to Cloud Storage

ATT&CK: T1567.002

Detects rclone run with copy/sync/move and bulk-transfer or unattended flags, a common ransomware-affiliate method of staging data to cloud storage before encryption. Auto-generated starting point — validate and tune in your environment before deploying. IOC matches can false-positive on shared infrastructure and decay as adversary infrastructure rotates.

```yaml
title: Rclone Bulk Data Transfer to Cloud Storage
description: Detects rclone executed with copy/sync/move plus bulk-transfer or unattended
  flags, typical of pre-encryption data exfiltration to cloud storage by ransomware
  operators. Matches on the tool and argument pattern, not a specific remote name
  or destination.
tags:
- attack.exfiltration
- attack.t1567.002
logsource:
  category: process_creation
  product: windows
detection:
  selection_img:
  - Image|endswith: \rclone.exe
  - OriginalFileName: rclone.exe
  selection_action:
    CommandLine|contains:
    - ' copy '
    - ' sync '
    - ' move '
  selection_flags:
    CommandLine|contains:
    - --transfers
    - --multi-thread-streams
    - --auto-confirm
    - --no-check-certificate
    - --ignore-existing
    - --max-age
    - --config
  condition: selection_img and selection_action and selection_flags
falsepositives:
- Administrators using rclone for sanctioned backups or migrations to cloud storage
- Developers syncing build artefacts to object storage with rclone
level: high
id: 1f9b7f5a-52ff-57de-8e8e-23b1a7701601
status: experimental
author: Vorant
references:
- https://www.ransomware.live/id/SnVudGFkZWFuZGFsdWNpYUBtZWR1c2Fsb2NrZXI=
```

Behavioural rules are generated from public reporting — validate in your environment before deploying.

1 more detection for this report is in the app: the rules that match its indicators, the Sigma rules already converted to Splunk SPL, to Elastic where their fields map onto Elastic's integrations and to Microsoft Defender XDR KQL wherever Defender records the activity, and the YARA and Suricata. A new account gets three days of them free.

Source reporting: https://www.ransomware.live/id/SnVudGFkZWFuZGFsdWNpYUBtZWR1c2Fsb2NrZXI=

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