TITAN Ransomware Gang: 9 Italian Victims Posted in Single-Day Blitz — Sector Analysis, CVE Correlation & Detection Rules

---
title: Suspicious Authentication After VPN Gateway Session — Possible Appliance Exploitation
id: 8f3a1c2e-titan-2026-0001
status: experimental
description: Detects anomalous internal authentication or process execution within a short window following a VPN gateway session, consistent with post-exploitation activity after perimeter appliance compromise (e.g., CVE-2026-50751 Check Point IKEv1 abuse)
author: Security Arsenal Threat Intelligence
date: 2026/08/21
references:
  - https://www.cisa.gov/known-exploited-vulnerabilities-catalog
logsource:
  category: authentication
  product: windows
detection:
  selection_logon_type:
    LogonType:
      - 3
      - 10
  selection_source:
    IpAddress|startswith:
      - '10.'
      - '172.16.'
      - '192.168.'
  filter_known_users:
    TargetUserName|endswith: '$'
  condition: selection_logon_type and selection_source and not filter_known_users
falsepositives:
  - Legitimate VPN user logons — tune by correlating with VPN appliance logs and flagging first-seen source IPs
level: medium
tags:
  - attack.initial_access
  - attack.t1133
---
title: PsExec-Style Remote Service Creation — Ransomware Lateral Movement
id: 8f3a1c2e-titan-2026-0002
status: experimental
description: Detects remote service installation events (Event ID 7045) with service binaries executed from ADMIN$ or named pipes, consistent with PsExec/impacket-based lateral movement used by ransomware operators prior to mass encryption
author: Security Arsenal Threat Intelligence
date: 2026/08/21
logsource:
  product: windows
  service: system
detection:
  selection:
    EventID: 7045
  selection_path:
    ImagePath|contains:
      - 'ADMIN$'
      - '\\PSEXESVC'
      - '\\.\pipe\'
      - 'C:\\Windows\\Temp\\'
      - 'C:\\Users\\Public\\'
  condition: selection and selection_path
falsepositives:
  - Legitimate administrative tooling — whitelist known admin service names and software deployment accounts
level: high
tags:
  - attack.lateral_movement
  - attack.t1021.002
  - attack.t1569.002
---
title: Pre-Ransomware Staging — Shadow Copy Deletion and Backup Tampering
id: 8f3a1c2e-titan-2026-0003
status: experimental
description: Detects Volume Shadow Copy deletion, backup catalog tampering, and boot configuration changes that ransomware operators execute immediately before detonation
author: Security Arsenal Threat Intelligence
date: 2026/08/21
logsource:
  category: process_creation
  product: windows
detection:
  selection_vssadmin:
    Image|endswith: '\vssadmin.exe'
    CommandLine|contains:
      - 'delete shadows'
      - 'Delete Shadows'
  selection_wmic:
    Image|endswith: '\wmic.exe'
    CommandLine|contains: 'shadowcopy'
  selection_bcdedit:
    Image|endswith: '\bcdedit.exe'
    CommandLine|contains:
      - 'recoveryenabled no'
      - 'ignoreallfailures'
  selection_wbadmin:
    Image|endswith: '\wbadmin.exe'
    CommandLine|contains:
      - 'delete catalog'
      - 'delete systemstatebackup'
  condition: 1 of selection_*
falsepositives:
  - Backup maintenance scripts — rare; any hit during an active incident window should be treated as critical
level: critical
tags:
  - attack.impact
  - attack.t1490

// Hunt: Pre-ransomware staging behavior across the estate (T-minus window detection)
// Looks for: shadow copy deletion, suspicious service installs, mass file renames, remote admin tool execution
// Tune lookback to your dwell-time assumption; 14d covers typical TITAN-style dwell
let lookback = 14d;
let suspiciousHosts =
    DeviceProcessEvents
    | where Timestamp > ago(lookback)
    | where FileName in~ ("vssadmin.exe", "bcdedit.exe", "wbadmin.exe", "wmic.exe")
    | where ProcessCommandLine has_any ("delete shadows", "shadowcopy delete",
        "recoveryenabled", "delete catalog", "ignoreallfailures")
    | summarize StagingCommands = make_set(ProcessCommandLine, 5),
                FirstSeen = min(Timestamp), LastSeen = max(Timestamp)
        by DeviceName, InitiatingProcessAccountName
    | project DeviceName, InitiatingProcessAccountName;
let lateralMovement =
    DeviceEvents
    | where Timestamp > ago(lookback)
    | where ActionType == "ServiceInstalled"
    | extend ServiceName = tostring(AdditionalFields.ServiceName)
    | where ServiceName has_any ("PSEXESVC", "PAExec", "RemCom") or ServiceName matches regex "^[A-Za-z0-9]{7,10}$"
    | summarize RemoteServices = make_set(ServiceName, 10) by DeviceName;
let massRename =
    DeviceFileEvents
    | where Timestamp > ago(lookback)
    | where ActionType == "FileRenamed"
    | summarize RenameCount = count(),
                SampleExtensions = make_set(tostring(split(FileName, ".")[-1]), 10)
        by DeviceName, bin(Timestamp, 1h)
    | where RenameCount > 500;
suspiciousHosts
| join kind=leftouter lateralMovement on DeviceName
| join kind=leftouter (massRename | summarize arg_max(Timestamp, *) by DeviceName) on DeviceName
| project DeviceName, InitiatingProcessAccountName, RemoteServices, RenameCount, SampleExtensions
| sort by RenameCount desc

# TITAN Rapid Response Sweep — run on suspected hosts or via GPO/MDE Live Response
# Checks: shadow copies, recent scheduled tasks, RDP exposure, suspicious services (last 7 days)
$lookback = (Get-Date).AddDays(-7)
$report = [ordered]@{}

Write-Host "[1/5] Volume Shadow Copies..." -ForegroundColor Cyan
$shadows = Get-CimInstance Win32_ShadowCopy -ErrorAction SilentlyContinue
$report.ShadowCopyCount = @($shadows).Count
if ($report.ShadowCopyCount -eq 0) { Write-Warning "NO shadow copies found — possible pre-ransomware deletion (T1490)" }

Write-Host "[2/5] Scheduled tasks created in last 7 days..." -ForegroundColor Cyan
$report.RecentTasks = Get-ScheduledTask | Where-Object { $_.Date -gt $lookback } |
    Select-Object TaskName, TaskPath, Date, @{N='Action';E={$_.Actions.Execute}} 
$report.RecentTasks | Format-Table -AutoSize

Write-Host "[3/5] Suspicious services installed in last 7 days..." -ForegroundColor Cyan
$report.RecentServices = Get-WinEvent -FilterHashtable @{LogName='System'; Id=7045; StartTime=$lookback} -ErrorAction SilentlyContinue |
    Where-Object { $_.Message -match 'PSEXESVC|ADMIN\$|Temp|Users\\Public' } |
    Select-Object TimeCreated, Message
$report.RecentServices | Format-List

Write-Host "[4/5] RDP exposure check..." -ForegroundColor Cyan
$rdpEnabled = (Get-ItemProperty 'HKLM:\SYSTEM\CurrentControlSet\Control\Terminal Server').fDenyTSConnections -eq 0
$report.RDPEnabled = $rdpEnabled
$report.RDPListening = [bool](Get-NetTCPConnection -LocalPort 3389 -State Listen -ErrorAction SilentlyContinue)
$report.RDPInternetExposed = [bool](Get-NetTCPConnection -LocalPort 3389 -State Listen -ErrorAction SilentlyContinue |
    Where-Object { $_.LocalAddress -notin @('127.0.0.1','::1') })
if ($report.RDPInternetExposed) { Write-Warning "RDP listening on non-loopback — verify it is NOT internet-reachable" }

Write-Host "[5/5] Recent interactive/remote logons from unusual sources..." -ForegroundColor Cyan
$report.RemoteLogons = Get-WinEvent -FilterHashtable @{LogName='Security'; Id=4624; StartTime=$lookback} -ErrorAction SilentlyContinue |
    Where-Object { $_.Message -match 'Logon Type:\s+(3|10)' } |
    Group-Object { ($_.Message -split "`n") -match 'Source Network Address' } |
    Sort-Object Count -Descending | Select-Object -First 10 Name, Count
$report.RemoteLogons | Format-Table -AutoSize

$report | ConvertTo-Json -Depth 4 | Out-File "$env:TEMP\titan_sweep_$(Get-Date -Format yyyyMMdd_HHmm).json"
Write-Host "Report saved to $env:TEMP" -ForegroundColor Green