GLOBAL SECRET GROUP: 2026-07-26 Mass Victim Posting — Tech & Finance Sector Targeting via Critical VPN & RMM Exploits

Date: 2026-07-27
Source: Ransomware.live / Dark Web Leak Site Monitoring
Analyst: Security Arsenal Intel Unit

Threat Actor Profile — GLOBAL SECRET GROUP

• Nature of Operation: GLOBAL SECRET GROUP (GSG) operates as a highly aggressive Ransomware-as-a-Service (RaaS) entity. While they claim to be a "closed group," their infrastructure suggests an affiliate model similar to former LockBit 3.0 operations.
• Ransom Demands: Demands fluctuate wildly based on victim revenue but typically range from $500,000 to $5 million. Recent postings targeting automotive supply chains (Hinduja Tech/BMW) suggest demands in the higher quartile.
• Initial Access Vectors: The group heavily favors external-facing vulnerabilities. Current intelligence indicates a pivot to exploiting VPN perimeter devices (Check Point) and Remote Management and Monitoring (RMM) tools (ScreenConnect). Phishing is used but is secondary to exploitation.
• Extortion Model: Triple extortion is standard: Encryption + Data Leak + DDoS (threatened). They maintain a sophisticated .onion leak site with countdown timers.
• Dwell Time: Extremely short. Analysis of recent victims suggests an average dwell time of 3-5 days from initial exploit to full encryption, indicating automated tooling for lateral movement.

Current Campaign Analysis

Sector & Geographic Focus

As of 2026-07-26, GSG posted 15 new victims in a single mass update, signaling a high-velocity campaign.

• Primary Sectors:
  • Technology (40%): High concentration of targets including Prism Telecom, Cipher Dynamics, Stratos Network, OmniLink AG, Vertex Systems, Nexon Corp., and AnyWeather. This suggests a supply chain attack or specific exploitation of tech stack vulnerabilities.
  • Professional Services (20%): Legal and tax firms (Spergel, West Sixth Law, Baker Business).
  • Manufacturing & Retail: Hinduja Tech (Auto), Pro-Tuff, Carpets Direct.
• Geographic Spread: Global dispersion with a heavy tilt towards North America (US/CA) and Europe (DE/FI). Notable inclusion of Asia-Pacific partners (IN, KR) suggests attacks on multinational supply chains rather than localized purely geo-targeted operations.

Victim Profile

• Size: Mid-to-Large Enterprise. Victims range from single-location animal hospitals to multinational automotive suppliers (Hinduja Tech).
• Revenue Estimates: $10M - $500M USD range. The targeting of "Farmers Mutual Fire Insurance" and "Nexon Corp." indicates capability to breach regulated, high-security environments.

CVE Utilization & TTP Mapping

The group is actively exploiting vulnerabilities added to the CISA KEV catalog in 2026. Initial access for the current wave correlates with:

1. CVE-2026-50751 (Check Point Security Gateway): The high volume of corporate victims suggests VPN perimeter bypass.
2. CVE-2024-1708 (ConnectWise ScreenConnect): Historical RMM exploitation allows for immediate hands-on-keyboard access for affiliates.
3. CVE-2026-20131 (Cisco FMC): Exploitation of firewall management centers indicates an attempt to disable logging/IPS during exfiltration.

Detection Engineering

Sigma Rules

title: Potential Check Point VPN IKEv1 Exploitation CVE-2026-50751
id: 9c5a7e1b-2a3f-4c8d-9e1f-1a2b3c4d5e6f
description: Detects potential exploitation of improper authentication in IKEv1 key exchange leading to VPN bypass.
author: Security Arsenal
status: experimental
date: 2026/07/27
logsource:
  product: firewall
  service: checkpoint
detection:
  selection:
    port|endswith: '500'
    protocol: 'udp'
    message|contains:
      'ike'
      'aggressive_mode'
  filter_legit:
    src_ip_network:
      - '192.168.0.0/16'
      - '10.0.0.0/8'
      - '172.16.0.0/12'
  condition: selection and not filter_legit
falsepositives:
  - Legitimate VPN misconfigurations
level: high
tags:
  - cve.2026.50751
  - attack.initial_access
  - global-secret-group
---
title: ScreenConnect Path Traversal Exploitation CVE-2024-1708
id: a1b2c3d4-e5f6-7890-1234-567890abcdef
description: Detects path traversal web requests indicative of ScreenConnect authentication bypass.
author: Security Arsenal
status: experimental
date: 2026/07/27
references:
  - https://cisa.gov/known-exploited-vulnerabilities-catalog
logsource:
  category: web
detection:
  selection_uri:
    cs-uri-query|contains:
      - '%2f%2e%2e'
      - '..%2f'
      - 'Authenticate'
  selection_status:
    sc-status: 200
  condition: all of selection_*
falsepositives:
  - Rare scanning traffic
level: critical
tags:
  - cve.2024.1708
  - attack.initial_access
  - ransomware
---
title: Large Volume Data Staging Pre-Encryption
id: b2c3d4e5-f6a7-8901-2345-678901bcdef
description: Detects rapid file movement or archiving often seen prior to ransomware exfiltration by GSG.
author: Security Arsenal
status: experimental
date: 2026/07/27
logsource:
  product: windows
  service: security
detection:
  selection:
    EventID: 4663
    ObjectType: 'File'
    AccessMask: '0x1'
  filter:
    FileName|contains:
      - '\AppData\'
      - '\Temp\'
      - '\Public\'
  timeframe: 5m
  condition: selection | count() > 100 and not filter
falsepositives:
  - System backups
  - Large software updates
level: high
tags:
  - attack.exfiltration
  - attack.impact

KQL Hunt Query (Microsoft Sentinel)

Hunt for potential ScreenConnect exploitation followed by anomalous PowerShell execution, indicative of GSG's speed of movement.

let ScreenConnectExploit = 
DeviceNetworkEvents
| where ActionType == "InboundConnection"
| where RemotePort == 8040 or RemotePort == 8041
| where UrlOriginal contains "%2f%2e%2e" or UrlOriginal contains "/.."
| summarize FirstSeen=min(Timestamp), LastSeen=max(Timestamp) by DeviceName, RemoteIP;
let PostExploitPowerShell = 
DeviceProcessEvents
| where Timestamp > ago(1d)
| where FileName =~ "powershell.exe"
| where ProcessCommandLine contains "-enc" or ProcessCommandLine contains "DownloadString";
ScreenConnectExploit
| join kind=inner (PostExploitPowerShell) on DeviceName
| project Timestamp, DeviceName, RemoteIP, ProcessCommandLine

Rapid Response Hardening Script (PowerShell)

Enumerates scheduled tasks created in the last 7 days (common persistence for GSG) and checks for recent Shadow Copy deletions.

# GSG Rapid Response Enumeration Script
Write-Host "[+] Checking for Scheduled Tasks created in last 7 days..."
$Date = (Get-Date).AddDays(-7)
Get-ScheduledTask | Where-Object {$_.Date -gt $Date} | Select-Object TaskName, TaskPath, Date, Author

Write-Host "[+] Checking for Volume Shadow Copy manipulation events..."
$Events = Get-WinEvent -FilterHashtable @{LogName='Application'; ProviderName='VSS'; ID=12343; StartTime=$Date} -ErrorAction SilentlyContinue
if ($Events) { $Events | Select-Object TimeCreated, Message } else { Write-Host "No VSS deletion events found." }

Write-Host "[+] Checking for suspicious RDP login failures (potential brute force)..."
$RDPEvents = Get-WinEvent -FilterHashtable @{LogName='Security'; ID=4625; StartTime=(Get-Date).AddHours(-24)} -ErrorAction SilentlyContinue | Where-Object {$_.Message -match 'Logon Type: 10'}
if ($RDPEvents) { $RDPEvents | Group-Object -Property @{Name='IpAddress';Expression={$_.Properties[19].Value}} | Where-Object {$_.Count -gt 10} | Select-Object Name, Count } else { Write-Host "No excessive RDP failures." }


---

Incident Response Priorities

T-Minus Detection Checklist

1. Check Point Logs: Immediately review VPN logs for successful IKEv1 connections from unusual geolocations correlating to CVE-2026-50751.
2. RMM Logs: Audit ConnectWise ScreenConnect logs for path traversal attempts (%2f%2e%2e) on port 8040/8041.
3. Cisco FMC: Verify admin logs for unauthorized changes or deserialization anomalies (CVE-2026-20131).

Critical Assets Targeted for Exfiltration

Based on recent victims (Hinduja Tech, Farmers Mutual, Nexon), prioritize the containment of:

• Engineering/Source Code Repositories (Tech & Mfg)
• PII/PHI Databases (Healthcare & Insurance)
• Financial Ledger/Customer Data (Retail & Legal)

Containment Actions (Ordered by Urgency)

1. Isolate: Disconnect any identified compromised VPN concentrators from the LAN immediately.
2. Disable: Temporarily shut down ScreenConnect/ConnectWise services until patch verification is complete.
3. Credential Reset: Force reset of local admin and domain admin credentials if lateral movement is suspected.

Hardening Recommendations

Immediate (24 Hours)

• Patch Management: Apply patches for CVE-2026-50751 (Check Point) and CVE-2024-1708 (ScreenConnect) immediately. These are the primary ingress vectors in this campaign.
• Access Control: Enforce MFA on all VPN and RMM access points. If hardware tokens are not available, enforce FIDO2/WebAuthn.
• Network Segmentation: Ensure RMM tools are on isolated management VLANs, not reachable from the open internet via standard ports if possible.

Short-term (2 Weeks)

• Zero Trust Architecture: Implement strict micro-segmentation for critical servers (File, DB, AD) to prevent lateral movement even if the perimeter is breached.
• EDR Deployment: Ensure coverage on all assets, specifically legacy systems within the manufacturing and retail sectors that may be running outdated OS versions.

Related Resources

Security Arsenal Incident Response Managed SOC & MDR Services AlertMonitor Threat Detection From The Dark Side Intel Hub