Rising Tide of Infostealers: Bumblebee, JINX-0164, and GHOST STADIUM Operations Targeting Critical Infrastructure

title: Potential Bumblebee Loader via Trojanized IT Tools
id: 7b7c8d1e-5f6a-4a2b-8c9d-1e5f6a4a2b8c
description: Detects execution of suspicious processes potentially related to trojanized IT tools like ManageEngine OpManager or AngryIP, followed by network connections characteristic of Bumblebee loader activity.
status: experimental
date: 2026/07/01
author: Security Arsenal
references:
    - https://otx.alienvault.com/pulse/6651234567890
tags:
    - attack.initial_access
    - attack.t1190
    - attack.s1204
logsource:
    category: process_creation
    product: windows
detection:
    selection_img:
        Image|endswith:
            - '\ManageEngine_OpManager.exe'
            - '\ipscan.exe'
            - '\opmanager.exe'
    selection_network:
        NetworkEvent: true
    selection suspicious_child:
        ParentImage|endswith:
            - '\ManageEngine_OpManager.exe'
            - '\ipscan.exe'
        Image|contains:
            - '\Temp\'
            - '\AppData\Roaming\'
            - '\AppData\Local\'
        Image|endswith:
            - '.exe'
    condition: 1 of selection*
falsepositives:
    - Legitimate administration by IT staff
level: high
---
title: RMM SimpleHelp CVE-2026-48558 Exploitation Attempt
id: a1b2c3d4-5678-90ab-cdef-1234567890ab
description: Detects potential exploitation of CVE-2026-48558 in SimpleHelp RMM software, characterized by suspicious command line execution or unexpected technician access patterns.
status: experimental
date: 2026/07/01
author: Security Arsenal
references:
    - https://otx.alienvault.com/pulse/6651234567891
tags:
    - attack.exploitation_for_privilege_escalation
    - attack.cve-2026-48558
    - attack.t1068
logsource:
    category: process_creation
    product: windows
detection:
    selection_process:
        Image|contains: 'SimpleHelp'
        CommandLine|contains:
            - 'powershell'
            - 'cmd.exe /c'
            - 'whoami'
    selection_anomaly:
        Image|contains: 'SimpleHelp'
        ParentImage|contains:
            - 'explorer.exe'
            - 'unknown'
    condition: 1 of selection*
falsepositives:
    - Legitimate remote administration tasks
level: critical
---
title: Infostealer Credential Dumping Activity (Vidar/Lumma)
id: e5f6g7h8-9012-34cd-ef56-789012345678
description: Detects behavior consistent with Vidar and Lumma stealers accessing browser credential files or using tools like Procdump for LSASS access.
status: experimental
date: 2026/07/01
author: Security Arsenal
references:
    - https://otx.alienvault.com/pulse/6651234567892
tags:
    - attack.credential_access
    - attack.t1003
logsource:
    category: process_access
    product: windows
detection:
    selection_lsass:
        TargetImage|endswith: '\lsass.exe'
        GrantedAccess: '0x1010'
        SourceImage|endswith:
            - '.exe'
    selection_browser:
        TargetFilename|contains:
            - '\Google\Chrome\User Data\Default\Login Data'
            - '\Mozilla\Firefox\profiles\logins.'
    condition: 1 of selection*
falsepositives:
    - Antivirus scanning
    - Legitimate browser usage (rare for direct file access)
level: high

// Hunt for connections to known suspicious domains and IPs from the OTX Pulse
let IOCs = dynamic([
    "172.96.137.160", "96.126.130.126", "45.207.216.55", "angryipscanner.org", "opmanager.pro", 
    "fifa.gold", "fifa.black", "fifa.tax", "login.teamicrosoft.com", "teams.live.us.org"
]);
DeviceNetworkEvents
| where RemoteIP in (IOCs) or RemoteUrl has_any (IOCs)
| project Timestamp, DeviceName, InitiatingProcessAccountName, RemoteUrl, RemoteIP, RemotePort, InitiatingProcessCommandLine
| extend Timestamp = format_datetime(Timestamp, 'yyyy-MM-dd HH:mm:ss')
| order by Timestamp desc

<#
    .SYNOPSIS
        IOC Hunter for JINX-0164, Bumblebee, and GHOST STADIUM Campaigns
    .DESCRIPTION
        Scans the file system for specific file hashes associated with the recent OTX pulses.
#>

$TargetHashes = @(
    "a14506c6fb92a5af88a6a44d273edafe10d69ee3d85c8b2a7ac458a22edf68d2", # Bumblebee SHA256
    "a746da514c90f26a187a294fda7edc1b", # Bumblebee MD5
    "bcee0ab10b23f5999bcdb56c0b4a631a", # Bumblebee MD5
    "1b9aa401457d29405c0bcf19cbf19a7028a0d214", # Bumblebee SHA1
    "f352cec89a56e23dae20cdd62df4d40bc7f22b5e", # Bumblebee SHA1
    "00cc86d1144020c24c8fbb3a8dc6b908926497ebd23be3bf854360f93d1c8f4c", # TaskWeaver SHA256
    "f4a72600a3735c2a4d843875ea61bbb6f935a1af51a81f2fbc992ce11ba94afc", # Djinn Stealer SHA256
    "b6cab0b3aa8e56e2427f486c74588d598ae58bb0cbc0eda6939fe171cb0aed17"  # AUDIOFIX SHA256
)

$SearchPaths = @("C:\Users\", "C:\ProgramData\", "C:\Windows\Temp", "C:\Downloads")

Write-Host "Starting IOC Scan..." -ForegroundColor Cyan

foreach ($Path in $SearchPaths) {
    if (Test-Path $Path) {
        Get-ChildItem -Path $Path -Recurse -ErrorAction SilentlyContinue | Get-FileHash -Algorithm SHA256, MD5 -ErrorAction SilentlyContinue | Where-Object {
            $_.Hash -in $TargetHashes
        } | ForEach-Object {
            Write-Host "[!] MALICIOUS FILE DETECTED: $($_.Path) | Hash: $($_.Hash)" -ForegroundColor Red
        }
    }
}

# Check for SimpleHelp RMM Service (Potential CVE-2026-48558 Vector)
$Service = Get-Service -Name "SimpleHelp*" -ErrorAction SilentlyContinue
if ($Service) {
    Write-Host "[!] SimpleHelp RMM Detected. Verify patch status for CVE-2026-48558 immediately." -ForegroundColor Yellow
}

Write-Host "Scan Complete."