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MITRE ATT&CK® Tool

S0508: ngrok

ngrok is a legitimate reverse proxy tool that can create a secure tunnel to servers located behind firewalls or on local machines that do not have a public IP. ngrok has been leveraged by threat actors in several campaigns including use for lateral movement and data exfiltration.[1][2][3][4]

EnterpriseS0508ToolObject v1.4Modified
Glexia's Take · Automated analysis

Security context for executives and security teams

Automation confidenceMedium

S0508: ngrok describes [ngrok](https://attack.mitre.org/software/S0508) is a legitimate reverse proxy tool that can create a secure tunnel to servers located behind firewalls or on local machines that do not have a public IP. [ngrok](https://attack.mitre.org/software/S0508) has been leveraged by threat actors in several campaigns including use for lateral movement and data exfiltration.(Citation: Zdnet Ngrok September 2018)(Citation: FireEye Maze May 2020)(Citation: Cyware Ngrok May 2019)(Citation: MalwareBytes LazyScripter Feb 2021)

Executive priority

S0508: ngrok is an official MITRE ATT&CK software. Glexia treats it as defensive behavior context for prioritizing monitoring, control validation, and response planning without using the object by itself as an attribution claim.

Technical view

Security teams should validate S0508: ngrok by reviewing the official ATT&CK relationships, mapped tactics (the mapped ATT&CK tactic context), supported platforms (Windows), and available local telemetry before making detection or mitigation decisions.

Likely telemetry

  • Official ATT&CK relationships and object metadata
  • Network, endpoint, and security-tool telemetry

Detection direction

  • Validate whether S0508: ngrok appears in your detection coverage and tabletop scenarios.
  • Use the object to align executive risk language with SOC, incident response, and detection engineering work.
  • Do not treat ATT&CK relationship context as attribution without corroborating evidence.

Mitigation priorities

  • Map the object to existing controls and identify missing telemetry or response ownership.
  • Prioritize mitigations that reduce exposure on the listed platforms and tactics.
  • Review adjacent ATT&CK relationships before changing policy, detections, or reporting language.
Additional notes and limits

Baseline Glexia take generated from the official MITRE ATT&CK STIX object, source hash, tactics, platforms, and detection fields. It is safe to replace with a richer model-generated take for the same source hash later.

This baseline take is source-grounded and schema-validated, but it does not include environment-specific telemetry, incident evidence, or threat-intelligence corroboration.

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Official MITRE ATT&CK definition

ngrok

ngrok is a legitimate reverse proxy tool that can create a secure tunnel to servers located behind firewalls or on local machines that do not have a public IP. ngrok has been leveraged by threat actors in several campaigns including use for lateral movement and data exfiltration.[1][2][3][4]

View the same entry on attack.mitre.org (MITRE-hosted reference; in-page links above use the Glexia ATT&CK library.)

Glexia analysis

How security teams should use this page

Treat this object as behavior context, not an attribution claim. Validate the related groups, software, data sources, and mitigations against official ATT&CK relationships and your own telemetry before making control-coverage decisions.

ATT&CK relationship table

Techniques used

This mirrors the MITRE pattern of making group, software, campaign, and technique relationships scannable. Relationship notes come from mirrored ATT&CK relationship text when available.

5 rows
DomainIDNameRelationship / procedure
EnterpriseT1090Proxy

ngrok can be used to proxy connections to machines located behind NAT or firewalls.CitationMalwareBytes Ngrok February 2020[1]

EnterpriseT1567Exfiltration Over Web Service

ngrok has been used by threat actors to configure servers for data exfiltration.CitationMalwareBytes Ngrok February 2020

EnterpriseT1568.002Domain Generation AlgorithmsSub-technique

ngrok can provide DGA for C2 servers through the use of random URL strings that change every 12 hours.[1]

EnterpriseT1102Web Service

ngrok has been used by threat actors to proxy C2 connections to ngrok service subdomains.[1]

EnterpriseT1572Protocol Tunneling

ngrok can tunnel RDP and other services securely over internet connections.[2][3]CitationMalwareBytes Ngrok February 2020CitationTrend Micro Ngrok September 2020

Associated objects

Groups, software, and campaigns

GroupEnterprise

G1015: Scattered Spider

Scattered Spider is a native English-speaking cybercriminal group active since at least 2022. [1] [2] The group initially targeted customer relationship management (CRM) providers, business process outsourcing (BPO) firms, and telecommunications and technology companies before expanding in 2023 to gaming, hospitality, retail, managed service provider (MSP), manufacturing, and financial sectors. [2] Scattered Spider relies heavily on social engineering, including impersonating IT and help-desk staff, to gain initial access, bypass multi-factor authentication (MFA), and compromise enterprise networks. The group has adapted its tooling to evade endpoint detection and response (EDR) defenses and used ransomware for financial gain. [3] [4] [5] Scattered Spider had expanded into hybrid cloud and identity environments, using help-desk impersonation and MFA bypass to obtain administrator access in Okta, AWS, and Office 365. [6]

GroupEnterprise

G0049: OilRig

OilRig is a suspected Iranian threat group that has targeted Middle Eastern and international victims since at least 2014. The group has targeted a variety of sectors, including financial, government, energy, chemical, and telecommunications. It appears the group carries out supply chain attacks, leveraging the trust relationship between organizations to attack their primary targets. The group works on behalf of the Iranian government based on infrastructure details that contain references to Iran, use of Iranian infrastructure, and targeting that aligns with nation-state interests.[1][2][3][4][5][6][7]

GroupEnterprise

G1003: Ember Bear

Ember Bear is a Russian state-sponsored cyber espionage group that has been active since at least 2020, linked to Russia's General Staff Main Intelligence Directorate (GRU) 161st Specialist Training Center (Unit 29155).[1] Ember Bear has primarily focused operations against Ukrainian government and telecommunication entities, but has also operated against critical infrastructure entities in Europe and the Americas.[2] Ember Bear conducted the WhisperGate destructive wiper attacks against Ukraine in early 2022.[3][4][1] There is some confusion as to whether Ember Bear overlaps with another Russian-linked entity referred to as Saint Bear. At present available evidence strongly suggests these are distinct activities with different behavioral profiles.[2][5]

GroupEnterprise

G0117: Fox Kitten

Fox Kitten is threat actor with a suspected nexus to the Iranian government that has been active since at least 2017 against entities in the Middle East, North Africa, Europe, Australia, and North America. Fox Kitten has targeted multiple industrial verticals including oil and gas, technology, government, defense, healthcare, manufacturing, and engineering.[1][2][3][4]

MalwareEnterprise

S9000: Ngrok

Official MITRE ATT&CK object mirrored from source data.

WindowsRevoked/deprecated
CampaignEnterprise

C0058: SharePoint ToolShell Exploitation

The SharePoint ToolShell Exploitation campaign was conducted in July 2025 and encompassed the first waves of exploitation against incompletely patched spoofing (CVE-2025-49706) and remote code execution (CVE-2025-49704) vulnerabilities affecting on-premises Microsoft SharePoint servers. Later patched and updated as CVE-2025-53770 and CVE-2025-53771, the ToolShell vulnerabilities were widely exploited including by China-based ransomware actor Storm-2603 and espionage actors Threat Group-3390 and ZIRCONIUM. SharePoint ToolShell Exploitation targeted multiple regions and industries including finance, education, energy, and healthcare across Asia, Europe, and the United States.[1][2][3][4][5]

Relationship explorer

All related ATT&CK context

Change history

Object version and sync metadata

The fields below describe the current mirrored snapshot. When Glexia retains multiple ATT&CK source imports, you can open the table to compare the same object across releases (hashes and MITRE timestamps). For MITRE’s own release notes and roadmap, see ATT&CK resources — Updates.

ATT&CK release
19.2
Object version
1.4
Created
Modified
Raw hash
4e66f5e0de5189e4...
Imported snapshots across ATT&CK releases(2)
ReleaseBundle importedObject versionModifiedStatusRaw hash
19.21.4Current bundle4e66f5e0de51…
19.11.4Older bundle4e66f5e0de51…
Raw source

Mirrored ATT&CK source object

The raw object is retained through the mirrored ATT&CK source bundle and object hash. The raw endpoint returns the exact object from the mirrored bundle when available.

Source references

External references and citations

MITRE external references are preserved separately from Glexia analysis so citations remain traceable to their original source records.

  1. [1]
    Zdnet Ngrok September 2018

    Cimpanu, C. (2018, September 13). Sly malware author hides cryptomining botnet behind ever-shifting proxy service. Retrieved September 15, 2020.

    Open source URL
  2. [2]
    FireEye Maze May 2020

    Kennelly, J., Goody, K., Shilko, J. (2020, May 7). Navigating the MAZE: Tactics, Techniques and Procedures Associated With MAZE Ransomware Incidents. Retrieved May 18, 2020.

    Open source URL
  3. [3]
    Cyware Ngrok May 2019

    Cyware. (2019, May 29). Cyber attackers leverage tunneling service to drop Lokibot onto victims’ systems. Retrieved September 15, 2020.

    Open source URL
  4. [4]
    MalwareBytes LazyScripter Feb 2021

    Jazi, H. (2021, February). LazyScripter: From Empire to double RAT. Retrieved November 17, 2024.

    Open source URL
  5. [5]
    mitre-attackS0508
    Open source URL
Source and licensing

Source: MITRE ATT&CK®. © 2026 The MITRE Corporation. This work is reproduced and distributed with the permission of The MITRE Corporation. MITRE ATT&CK and ATT&CK are registered trademarks of The MITRE Corporation. Glexia is not affiliated with or endorsed by MITRE.