Ninja has the ability to modify headers and URL paths to hide malicious traffic in HTTP requests.2
tool
Ninja S1100
- Type
- malware
- Platform
- Windows
- Created
- 11 January 2024
- Last modified
- 22 October 2025
Ninja is a malware developed in C++ that has been used by ToddyCat to penetrate networks and control remote systems since at least 2020. Ninja is possibly part of a post exploitation toolkit exclusively used by ToddyCat and allows multiple operators to work simultaneously on the same machine. Ninja has been used against government and military entities in Europe and Asia and observed in specific infection chains being deployed by Samurai.[1]
28
TechniquesTop 9%
8
TacticsTop 20%
1
Threat groupunranked
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S1100
Ninja has the ability to mimic legitimate services with customized HTTP URL paths and headers to hide malicious traffic.3
The Ninja payload is XOR encrypted and compressed.5 Ninja has also XORed its configuration data with a constant value of 0xAA.65
Ninja can configure its agent to work only in specific time frames.10
Standing S1100
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
Techniques28Top 9%
91st percentile · 91% of 825 ATT&CK software entries have this many Enterprise techniques or fewer.
Tactics8Top 20%
80th percentile · 80% of 825 ATT&CK software entries have this many tactics spanned or fewer.
Threat group161% 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.
Campaigns085% 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 / technique7.5medBottom 10%
10th percentile · 90% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique4med
Detection coverage S1100
625 distinct rules cover the 28 techniques recorded for this tool. The 654 technique-to-rule mappings resolve to 625 distinct rules, because one rule can cover several techniques. 448 Sigma · 177 Splunk.
21 covered by at least one rule7 with no coverage625 distinct rules in total
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