VEXY Ransomware Gang: 5 New Victims in 4 Days — India & LATAM Campaign, Sector Analysis & Detection Rules

Source: Dark web leak site monitoring via ransomware.live Report date: 2026-09-05 Confidence level: High (direct leak site observation); Medium (initial access vector attribution)

1. Threat Actor Profile — VEXY RANSOMWARE

VEXY RANSOMWARE is an emerging ransomware operation first observed in mid-2026 that appears to operate a closed/semi-private RaaS model — a small core operator set with limited affiliate recruitment, consistent with the disciplined victim cadence observed on their leak site (roughly 1-2 posts per day, no mass posting events).

Known characteristics:

• Aliases: None confirmed. No rebranding lineage established; treat as a new operation rather than a rebrand of a sanctioned group, pending further intelligence.
• Business model: Double extortion is standard. Victims are named on the leak site with a countdown; data samples are progressively released for non-payers. No evidence of triple extortion (DDoS / customer notification) to date.
• Ransom demands: Based on victim profile (SMB-to-mid-market), estimated demands fall in the $150K–$2M USD range — notably no Fortune-500-scale targets yet, suggesting deliberate targeting of organizations likely to pay quickly rather than negotiate through insurers and counsel.
• Initial access: No exclusive broker relationships confirmed. Likely vectors based on ecosystem telemetry: (a) exploitation of internet-facing edge appliances (Check Point gateways, remote access tooling), (b) RDP exposure with credential stuffing, (c) phishing with weaponized documents or trojanized developer tooling.
• Dwell time: Estimated 5–14 days from initial access to encryption based on posting cadence and sector norms — long enough for data staging and exfiltration, short enough to evade slow detection pipelines.
• Encryption behavior: Standard Windows-targeted ransomware; VSS deletion and service termination pre-encryption assumed based on comparable 2026 groups.

2. Current Campaign Analysis

Victim posting summary (last 100 postings → 5 victims, 2026-09-02 → 2026-09-04)

Sector targeting

• Manufacturing (2/5) and Retail/E-Commerce (1/5) dominate. These sectors share a trait VEXY appears to exploit deliberately: high operational-uptime pressure, immature segmentation between IT and OT/POS environments, and lean security staffing.
• Hospitality/franchise operators (McDonald's Ecuador — note: franchise entity, not corporate McDonald's) present a classic soft target: corporate brand exposure with franchisee-level security maturity. Payment data and employee PII are high-value exfil targets.
• Textiles/soft goods ("Other") fits the same pattern: mid-market, export-driven, downtime-intolerant.

Geographic concentration

India (3/5) is the clear epicenter, with LATAM (Ecuador, Brazil) as a secondary theater. This IN+LATAM pairing is characteristic of groups sourcing access from brokers selling edge-device footholds in regions where patch cadence on perimeter appliances lags global averages. Both regions also feature high proportions of mid-market firms without 24/7 SOC coverage — encryption events land on weekends and overnight local time.

Victim profile

All five victims are SMB-to-mid-market enterprises, estimated revenue $5M–$150M. No public-sector, healthcare, or critical infrastructure entities — consistent with a group calibrating for payment probability and low law-enforcement heat.

Posting frequency / escalation

5 victims in 72 hours (Sep 2–4) is a compressed cadence for a group this young. Either VEXY is batch-dumping a backlog of already-encrypted victims to build leak-site credibility, or multiple affiliates/crews are operating in parallel. Watch for: (a) whether pace sustains past 10 victims/month, (b) whether data samples actually leak (validating extortion credibility), (c) any escalation to critical sectors.

CVE correlation — probable initial access vectors

The following CISA KEV entries are assessed as plausible initial access or privilege escalation vectors for this campaign, based on overlap between VEXY's victimology and actively exploited attack surface:

• CVE-2026-50751 (Check Point Security Gateway — improper authentication in IKEv1 key exchange): Top candidate. Edge gateway compromise explains the geographic pattern (appliance-heavy perimeters, slow patch cycles in IN/LATAM). If you run Check Point with IKEv1, assume targeted.
• CVE-2024-1708 (ConnectWise ScreenConnect — path traversal → RCE): MSP/RMM channel vector. Mid-market victims frequently inherit compromise through their IT provider's ScreenConnect instance.
• CVE-2025-60710 (Windows link-following — privilege escalation): Post-exploitation escalation to SYSTEM before staging/encryption.
• CVE-2023-21529 (Exchange deserialization — authenticated RCE): On-prem Exchange is endemic in Indian and LATAM mid-market manufacturing; fits the profile for mailbox theft (exfil leverage) plus code execution.
• CVE-2026-48027 (Nx Console — embedded malicious code / supply chain): Developer workstation compromise; lower confidence for this campaign but relevant for victims with in-house dev teams.

Assessment (medium confidence): VEXY's most likely playbook is edge-VPN/RMM exploitation → Windows priv-esc → lateral movement via RDP/WMI → data staging → exfil → staged encryption with VSS deletion.

3. Detection Engineering

The following detections target the assessed VEXY playbook: VPN/edge initial access, credential-based lateral movement, pre-encryption staging and VSS destruction, and exfil preparation.

---
title: VEXY Ransomware - Volume Shadow Copy Deletion via vssadmin/wmic/diskshadow
id: 8f3a2c1e-vexy-0001-4b2d-9e5f-a1c7d3e9f001
status: experimental
description: Detects shadow copy deletion commands observed in ransomware pre-encryption staging. High-fidelity for VEXY-style detonation prep.
author: Security Arsenal - From The Dark Side
date: 2026/09/05
references:
  - https://securityarsenal.com/darkside
logsource:
  category: process_creation
  product: windows
detection:
  selection_img:
    Image|endswith:
      - '\vssadmin.exe'
      - '\wmic.exe'
      - '\diskshadow.exe'
      - '\bcdedit.exe'
  selection_cmd:
    CommandLine|contains:
      - 'delete shadows'
      - 'shadowcopy delete'
      - 'resize shadowstorage'
      - 'recoveryenabled no'
      - 'bootstatuspolicy ignoreallfailures'
  condition: selection_img and selection_cmd
falsepositives:
  - Backup administrators performing legitimate maintenance (rare; verify change tickets)
level: high
tags:
  - attack.impact
  - attack.t1490
---
title: VEXY Ransomware - Lateral Movement via PsExec or WMI Remote Process Creation
id: 8f3a2c1e-vexy-0002-4b2d-9e5f-a1c7d3e9f002
status: experimental
description: Detects remote service execution and WMI process spawn patterns consistent with VEXY lateral movement after edge-device initial access.
author: Security Arsenal - From The Dark Side
date: 2026/09/05
references:
  - https://securityarsenal.com/darkside
logsource:
  category: process_creation
  product: windows
detection:
  selection_psexec:
    - Image|endswith:
        - '\psexec.exe'
        - '\psexesvc.exe'
        - '\paexec.exe'
    - CommandLine|contains:
        - ' -accepteula'
  selection_wmi:
    ParentImage|endswith: '\WmiPrvSE.exe'
    Image|endswith:
      - '\cmd.exe'
      - '\powershell.exe'
      - '\pwsh.exe'
      - '\rundll32.exe'
      - '\mshta.exe'
  condition: 1 of selection_*
falsepositives:
  - Legitimate admin tooling (SCCM, PDQ) - baseline approved deployment servers and exclude
level: high
tags:
  - attack.lateral-movement
  - attack.t1021
  - attack.t1047
  - attack.t1569.002
---
title: VEXY Ransomware - Pre-Encryption Data Staging and Archive Creation
id: 8f3a2c1e-vexy-0003-4b2d-9e5f-a1c7d3e9f003
status: experimental
description: Detects mass archive creation with common exfil tools (7z/rar/winrar) on servers, consistent with VEXY double-extortion staging before encryption.
author: Security Arsenal - From The Dark Side
date: 2026/09/05
references:
  - https://securityarsenal.com/darkside
logsource:
  category: process_creation
  product: windows
detection:
  selection_img:
    Image|endswith:
      - '\7z.exe'
      - '\7za.exe'
      - '\rar.exe'
      - '\winrar.exe'
  selection_flags:
    CommandLine|contains:
      - ' a '
      - ' -p'
      - '-mx'
      - '-v'
  selection_paths:
    CommandLine|contains:
      - '\Users\'
      - '\\'
      - 'C:\Shares\'
      - 'finance'
      - 'backup'
  condition: selection_img and selection_flags and selection_paths
falsepositives:
  - Scheduled backup scripts using 7zip - whitelist known script paths and service accounts
level: medium
tags:
  - attack.collection
  - attack.t1560.001
  - attack.t1074

Microsoft Sentinel KQL — hunt for VEXY-style pre-ransomware staging (lateral movement + staging + VSS tampering within 24h window):

// VEXY Ransomware Hunt: correlate RDP/network logons, remote exec, and destructive staging within 24h
// Deploy as scheduled analytics rule or run interactively over 7d
let window = 24h;
let SuspiciousLogons =
    SecurityEvent
    | where TimeGenerated > ago(7d)
    | where EventID == 4624 and LogonType in (3, 10)
    | where Account !endswith "$" and Account !in~ ("SYSTEM", "ANONYMOUS LOGON")
    | where IpAddress !startswith "10." == false or IpAddress !startswith "192.168" == false  // flag external or unusual source
    | summarize FirstLogon=min(TimeGenerated), LogonCount=count() by Account, Computer, IpAddress;
let RemoteExec =
    union isfuzzy=true
    (DeviceProcessEvents
        | where TimeGenerated > ago(7d)
        | where InitiatingProcessParentFileName =~ "WmiPrvSE.exe"
           or FileName in~ ("psexec.exe","psexesvc.exe","paexec.exe")
        | project TimeGenerated, DeviceName, AccountName, FileName, ProcessCommandLine),
    (SecurityEvent
        | where TimeGenerated > ago(7d)
        | where EventID == 7045  // new service installed
        | project TimeGenerated, Computer, Account, ServiceName=EventData.ServiceName);
let StagingOrDestruction =
    DeviceProcessEvents
    | where TimeGenerated > ago(7d)
    | where ProcessCommandLine has_any ("delete shadows","shadowcopy delete","recoveryenabled no",
                                        "bootstatuspolicy ignoreallfailures","wbadmin delete",
                                        "resize shadowstorage")
       or (FileName in~ ("7z.exe","rar.exe","winrar.exe")
           and ProcessCommandLine has_any (" a "," -p"))
    | project TimeGenerated, DeviceName, AccountName, FileName, ProcessCommandLine;
SuspiciousLogons
| join kind=inner (RemoteExec) on $left.Computer == $right.DeviceName
| join kind=inner (StagingOrDestruction) on $left.Computer == $right.DeviceName
| where abs(datetime_diff('minute', StagingOrDestruction.TimeGenerated, FirstLogon)) <= (todouble(timespan(window))/1m)
| project FirstLogon, Account, Computer, SourceIP=IpAddress,
          LateralTool=FileName, StagingCmd=ProcessCommandLine, StagingTime=StagingOrDestruction.TimeGenerated
| sort by StagingTime desc

Rapid-response PowerShell — perimeter + staging posture check (run on suspected hosts and file servers):

# VEXY Rapid Triage - run elevated. Checks VSS health, new services, scheduled tasks, suspicious archives.
Write-Host "=== VEXY Rapid Triage: $env:COMPUTERNAME ===" -ForegroundColor Cyan

# 1. Volume Shadow Copy status (VEXY deletes these pre-encryption)
Write-Host "`n[1] Shadow copies:" -ForegroundColor Yellow
$shadows = Get-WmiObject Win32_ShadowCopy -ErrorAction SilentlyContinue
if ($shadows) { $shadows | Select-Object InstallDate, VolumeName, @{N='SizeGB';E={[math]::Round((Get-WmiObject Win32_ShadowStorage).UsedSpace/1GB,2)}} | Format-Table }
else { Write-Host "  [!] NO SHADOW COPIES FOUND - possible vssadmin deletion. Check Event 13/524 (VSS) and System logs." -ForegroundColor Red }

# 2. Services installed in last 7 days (PsExec-style lateral movement leaves these)
Write-Host "`n[2] Services installed in last 7 days:" -ForegroundColor Yellow
Get-WinEvent -FilterHashtable @{LogName='System'; Id=7045; StartTime=(Get-Date).AddDays(-7)} -ErrorAction SilentlyContinue |
  Select-Object TimeCreated, @{N='Service';E={$_.Properties[0].Value}}, @{N='ImagePath';E={$_.Properties[1].Value}} |
  Format-List

# 3. Scheduled tasks created/modified in last 7 days
Write-Host "`n[3] Recently created scheduled tasks:" -ForegroundColor Yellow
Get-ScheduledTask | Where-Object { $_.Date -and ([datetime]$_.Date) -gt (Get-Date).AddDays(-7) } |
  Select-Object TaskName, TaskPath, Date | Format-Table -AutoSize

# 4. Large archives modified in last 7 days (data staging for exfil)
Write-Host "`n[4] Recently modified archives (>50MB, last 7d) in common staging dirs:" -ForegroundColor Yellow
$paths = @("C:\Users","C:\ProgramData","C:\Temp","C:\Windows\Temp","D:\Shares")
foreach ($p in $paths) {
  if (Test-Path $p) {
    Get-ChildItem $p -Recurse -Include *.zip,*.7z,*.rar,*.tar,*.gz -ErrorAction SilentlyContinue |
      Where-Object { $_.Length -gt 50MB -and $_.LastWriteTime -gt (Get-Date).AddDays(-7) } |
      Select-Object FullName, @{N='MB';E={[math]::Round($_.Length/1MB,1)}}, LastWriteTime
  }
}

# 5. Exposed RDP check (initial access hygiene)
Write-Host "`n[5] RDP exposure:" -ForegroundColor Yellow
$rdp = Get-ItemProperty 'HKLM:\System\CurrentControlSet\Control\Terminal Server' -Name fDenyTSConnections -ErrorAction SilentlyContinue
if ($rdp.fDenyTSConnections -eq 0) { Write-Host "  [!] RDP ENABLED. Verify it is NOT internet-facing (check perimeter NAT/ACLs)." -ForegroundColor Red }
Get-NetTCPConnection -LocalPort 3389 -State Listen -ErrorAction SilentlyContinue | Select-Object LocalAddress, LocalPort, OwningProcess | Format-Table

# 6. Recent failed logons (brute-force / password-spray indicator)
Write-Host "`n[6] Failed logon bursts (last 24h):" -ForegroundColor Yellow
Get-WinEvent -FilterHashtable @{LogName='Security'; Id=4625; StartTime=(Get-Date).AddDays(-1)} -ErrorAction SilentlyContinue |
  Group-Object @{E={$_.Properties[5].Value}} | Where-Object Count -gt 20 |
  Select-Object @{N='Account';E={$_.Name}}, Count | Sort-Object Count -Descending | Format-Table

4. Incident Response Priorities (VEXY playbook-specific)

T-minus detection checklist — catch it BEFORE encryption fires

1. Edge appliance anomalies: New local admin accounts or config changes on Check Point gateways (CVE-2026-50751 exploitation); unexpected IKEv1 negotiation failures followed by successful auth.
2. RMM drift: ScreenConnect or other RMM instances connecting to endpoints outside normal maintenance windows; unexpected RMM agent installs.
3. Authentication spray: Bursts of 4625s against VPN/RDP from single IPs or rotating residential proxies.
4. Lateral movement: WmiPrvSE spawning cmd/powershell; new services (7045) on servers at odd hours; PsExec service artifacts (PSEXESVC).
5. Staging: Archive tool execution on file servers; sudden multi-GB outbound transfers to unfamiliar cloud storage or VPS endpoints; robocopy /MIR to nonstandard paths.
6. Detonation prep (hours before encryption): vssadmin delete shadows, bcdedit recoveryenabled no, AV/EDR tampering attempts, mass service stops (backup agents, databases).

Critical assets this gang prioritizes for exfiltration

• Finance/AP data (invoices, banking details) — used for payment-pressure follow-ups
• Employee PII and payroll exports (hospitality/retail victims: large hourly workforces = large PII hauls)
• Customer/order databases (e-commerce victims) — notification liability leverage
• ERP and manufacturing IP (drawings, BOMs, supplier contracts) — competitive-harm leverage
• Email archives from on-prem Exchange (CVE-2023-21529) — executive comms for social proof of breach depth

Containment actions — ordered by urgency

1. Isolate edge: Block/rotate all VPN and gateway credentials; take exploited Check Point/ScreenConnect instances offline; revoke all active sessions.
2. Disable suspect accounts, force enterprise-wide credential reset starting with privileged and service accounts (assume LSASS dumps).
3. Network segmentation: SMB/RDP/WMI (445, 3389, 135, 5985) between workstation VLANs and server segments OFF; isolate backup infrastructure first.
4. Protect backups: Take backup management interfaces off the network; verify offline/immutable copies exist and are not mounted.
5. Block exfil egress: Emergency egress filtering to known exfil cloud/VPS endpoints; enable TLS inspection alerts on anomalous volume.
6. Preserve forensics before remediation: Memory captures and triage images of patient zero and staging hosts — needed for dwell-time and exfil-scope determination (regulatory notification in IN/LATAM jurisdictions).
7. Do NOT pay or contact actors without IR counsel; preserve leak-site artifacts for negotiation/legal teams.

5. Hardening Recommendations

Immediate (24 hours)

• Patch or isolate Check Point gateways vulnerable to CVE-2026-50751; disable IKEv1 where operationally possible — this is the top-suspect entry vector.
• Patch ConnectWise ScreenConnect (CVE-2024-1708) and audit all RMM tools; remove any RMM not under enterprise management.
• Patch on-prem Exchange (CVE-2023-21529) or place behind strict segmentation; disable remote PowerShell for non-admin accounts.
• Patch Windows link-following priv-esc (CVE-2025-60710) on all servers and endpoints.
• Block or alert on PsExec/WMI remote execution from non-admin jump hosts; deploy the Sigma rules above.
• Restrict VSS commands (vssadmin, diskshadow, bcdedit) to approved admin accounts via WDAC/AppLocker and alert on all execution.
• Verify RDP is not internet-exposed (scan your own external ranges today); enforce MFA on all remote access.
• Enable immutable/offline backups and verify restore of one critical system — do not assume backups work.

Short-term (2 weeks)

• Deploy EDR with tamper protection and isolation capability across all servers; mid-market manufacturers in IN/LATAM are VEXY's sweet spot precisely because they lack this.
• Segment IT from OT/POS in manufacturing and retail environments; ransomware reaching production floors or payment systems converts a bad day into an existential one.
• Egress filtering + DLP alerting on bulk outbound transfers; VEXY's double extortion fails if exfil fails.
• Privileged Access Workstations + tiered admin model to break the credential-reuse lateral movement path.
• Application control (WDAC) blocking archive tools, PsExec-class utilities, and script interpreters for standard users.
• Tabletop the T-minus checklist with your IR retainers; measure mean-time-to-isolate on a simulated staging alert.
• Third-party/MSP review: VEXY's mid-market focus means compromise may arrive through your IT provider — audit their ScreenConnect/RMM patch posture contractually.

Related Resources

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