ngrok can be used to proxy connections to machines located behind NAT or firewalls.56
tool
ngrok S0508
- Type
- tool
- Platform
- Windows
- Created
- 14 September 2023
- Last modified
- 16 October 2025
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]
5
TechniquesBottom 23%
2
TacticsBottom 12%
5
Threat groupsunranked
1
Campaignunranked
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S0508
ngrok has been used by threat actors to proxy C2 connections to ngrok service subdomains.7
ngrok has been used by threat actors to configure servers for data exfiltration.8
ngrok can provide DGA for C2 servers through the use of random URL strings that change every 12 hours.9
ngrok can tunnel RDP and other services securely over internet connections.10111213
Standing S0508
Reach is how much of ATT&CK this tool touches. Coverage is how well defended each thing it does is, as a median per technique rather than a total — a total would just restate the reach. Each figure is ranked against all 825 ATT&CK software entries only where that population actually spreads. Where most of the population shares one value, a percentile would rank the tie instead of the entity, so the raw value is shown and no rank is claimed.
Reach
Techniques5Bottom 23%
23rd percentile · 77% of 825 ATT&CK software entries have more Enterprise techniques.
Tactics2Bottom 12%
12th percentile · 88% of 825 ATT&CK software entries have more tactics spanned.
Threat groups561% tie · 22 values
61% of the population shares a single value across only 22 distinct values, so a percentile here would rank the tie, not the entity.
Campaign185% tie · 8 values
85% of the population shares a single value across only 8 distinct values, so a percentile here would rank the tie, not the entity.
Coverage
Rules / technique22med53rd pct
53rd percentile · 53% of 825 ATT&CK software entries have this many detection rules per technique or fewer.
Tests / technique0med
Detection coverage S0508
74 distinct rules cover the 5 techniques recorded for this tool. The 105 technique-to-rule mappings resolve to 74 distinct rules, because one rule can cover several techniques. 50 Sigma · 24 Splunk.
5 covered by at least one rule74 distinct rules in total
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