CVE-2024-57726 & CISA KEV Alert: Active Exploitation of SimpleHelp, Samsung, and D-Link — Detection and Remediation

---
title: Potential Exploitation of SimpleHelp Remote Code Execution
id: 8a5b2c1d-3e4f-5a6b-7c8d-9e0f1a2b3c4d
status: experimental
description: Detects potential exploitation of CVE-2024-57726 by identifying SimpleHelp spawning suspicious child processes like cmd or powershell.
references:
 - https://www.cisa.gov/known-exploited-vulnerabilities-catalog
author: Security Arsenal
date: 2026/04/06
tags:
 - attack.initial_access
 - attack.execution
 - attack.t1059.001
logsource:
 category: process_creation
 product: windows
detection:
 selection:
   ParentImage|contains: 'SimpleHelp'
   Image|endswith:
     - '\\cmd.exe'
     - '\\powershell.exe'
     - '\\pwsh.exe'
 condition: selection
falsepositives:
 - Legitimate administrator using SimpleHelp to run scripts (rare, usually requires user interaction)
level: critical
---
title: Suspicious Administrative Access to D-Link or Samsung Devices
id: 1b2c3d4e-5f6a-7b8c-9d0e-1f2a3b4c5d6e
status: experimental
description: Detects potential access to management interfaces of D-Link or Samsung devices from external sources via CEF/Syslog.
references:
 - https://www.cisa.gov/known-exploited-vulnerabilities-catalog
author: Security Arsenal
date: 2026/04/06
tags:
 - attack.initial_access
 - attack.t1190
logsource:
 product: firewall
  service: cef
detection:
 selection:
   request|contains:
     - 'D-Link'
     - 'DIR-823X'
     - 'MagicINFO'
   dstPort:
     - 80
     - 443
     - 8080
   sourceIsPrivate:
     - 'false'
 condition: selection
falsepositives:
 - Legitimate administrative access from remote corporate IP ranges
level: high
---
title: SimpleHelp Network Anomalies
id: 9f8e7d6c-5b4a-3c2d-1e0f-9a8b7c6d5e4f
status: experimental
description: Detects outbound connections from SimpleHelp process to non-standard ports, potentially indicating C2 beaconing or data exfiltration.
references:
 - https://attack.mitre.org/techniques/T1071/
author: Security Arsenal
date: 2026/04/06
tags:
 - attack.command_and_control
 - attack.t1071
logsource:
 category: network_connection
 product: windows
detection:
 selection:
   Image|contains: 'SimpleHelp'
   DestinationPort|not:
     - 80
     - 443
     - 8080
     - 9000
   Initiated: 'true'
 condition: selection
falsepositives:
 - Custom configuration using non-standard relay ports
level: medium

// Hunt for SimpleHelp spawning child processes (Indicates potential RCE)
DeviceProcessEvents
| where InitiatingProcessFileName contains \"SimpleHelp\"
| where FileName in~ (\"cmd.exe\", \"powershell.exe\", \"pwsh.exe\", \"cscript.exe\", \"wscript.exe\")
| project Timestamp, DeviceName, AccountName, InitiatingProcessCommandLine, FileName, ProcessCommandLine
| order by Timestamp desc

// Hunt for MagicINFO or D-Link Management Access from External IPs (via Syslog/CEF)
Syslog
| where SyslogMessage contains \"D-Link\" or SyslogMessage contains \"MagicINFO\" or SyslogMessage contains \"DIR-823X\"
| where DestinationPort in (80, 443, 8080, 23)
| extend SourceIP = extract(@'SRC=([\\d.]+)', 1, SyslogMessage)
| extend DestinationIP = extract(@'DST=([\\d.]+)', 1, SyslogMessage)
| where ipv4_is_private(SourceIP) == false
| project TimeGenerated, SourceIP, DestinationIP, Facility, SyslogMessage
| order by TimeGenerated desc

-- Hunt for SimpleHelp Binaries and recent process executions
SELECT 
  OSPath,
  Mtime,
  Size,
  Name
FROM glob(globs='\\\Program Files\\\SimpleHelp\\\**\\\*')

-- Hunt for Suspicious Parent-Child relationships
SELECT 
  Pid,
  Name,
  Ppid,
  Parent.Name as ParentName,
  CommandLine,
  Username
FROM pslist()
WHERE ParentName =~ 'SimpleHelp'
  AND Name =~ 'cmd|powershell|pwsh|wscript|cscript'

<#
.SYNOPSIS
    Audit Script for SimpleHelp CVE-2024-57726
.DESCRIPTION
    Checks for the presence of SimpleHelp and identifies if the service is running.
    Ensures basic firewall rules are restricting access if possible.
#>

Write-Host \"[+] Checking for SimpleHelp Installation...\" -ForegroundColor Cyan

# Check for SimpleHelp Service
$simpleHelpService = Get-Service -Name \"SimpleHelp*\" -ErrorAction SilentlyContinue

if ($simpleHelpService) {
    Write-Host \"[!] SimpleHelp Service Detected:\" -ForegroundColor Yellow
    Write-Host \"    Name: $($simpleHelpService.DisplayName)\"
    Write-Host \"    Status: $($simpleHelpService.Status)\"
    Write-Host \"    StartType: $($simpleHelpService.StartType)\"
    
    # Check Executable Path for version info
    $servicePath = $simpleHelpService.BinaryPathName -replace '\"', '' -replace '.*?\s', ''
    if (Test-Path $servicePath) {
        $versionInfo = (Get-Item $servicePath).VersionInfo
        Write-Host \"    File Version: $($versionInfo.FileVersion)\"
        
        # LOGIC: Check against patched version (Placeholder version used for demo)
        # DEFENDERS: Replace 'X.X.X.X' with the actual patched version from the vendor.
        $patchedVersion = [version]\"X.X.X.X\" 
        $currentVersion = [version]$versionInfo.FileVersion
        
        if ($currentVersion -lt $patchedVersion) {
            Write-Host \"[ALERT] Version is vulnerable! Please update immediately.\" -ForegroundColor Red
        } else {
            Write-Host \"[OK] Version appears patched.\" -ForegroundColor Green
        }
    }
} else {
    Write-Host \"[OK] SimpleHelp Service not found.\" -ForegroundColor Green
}

# Check for MagicINFO (Common Install Path)
$magicInfoPath = \"C:\\Program Files (x86)\\Samsung\\MagicInfo\"
if (Test-Path $magicInfoPath) {
    Write-Host \"[!] Samsung MagicINFO Installation Detected. Please check CISA KEV for patch requirements.\" -ForegroundColor Yellow
}

Write-Host \"[+] Audit Complete.\" -ForegroundColor Cyan