TRAILBLAZE has injected a hook into an existing process to load BRUSHFIRE in the spaces allocated memory to include the Ivanti Connect Secure (ICS) web process named web.45
tool
TRAILBLAZE S9012
- Type
- malware
- Platforms
- Linux, Network Devices
- Created
- 14 April 2026
- Last modified
- 23 April 2026
TRAILBLAZE is an in-memory dropper used to deploy the passive backdoor BRUSHFIRE. First reported in March 2025, TRAILBLAZE has been observed in operations attributed to People's Republic of China (PRC) state-sponsored affiliated actors, including UNC5221 and SYLVANITE. [1][2][3]
4
TechniquesBottom 17%
4
Tactics32nd pct
0
Threat groupsNone recorded
0
CampaignsNone recorded
Enterprise ATT&CK only. Any Mobile or ICS rows on the same ATT&CK page are not carried.
MITRE reference S9012
TRAILBLAZE has conducted process discovery by searching for specific named processes such as /home/bin/web.67
TRAILBLAZE has the ability to delete temporary files and contents in specified directories to cover its tracks.89
TRAILBLAZE has leveraged raw syscalls to execute commands.1011
Standing S9012
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
Techniques4Bottom 17%
17th percentile · 83% of 825 ATT&CK software entries have more Enterprise techniques.
Tactics432nd pct
32nd percentile · 68% of 825 ATT&CK software entries have more tactics spanned.
Threat groups061% 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 / technique12medBottom 21%
21st percentile · 79% of 825 ATT&CK software entries have more detection rules per technique.
Tests / technique7med
Detection coverage S9012
60 distinct rules cover the 4 techniques recorded for this tool. 43 Sigma · 17 Splunk.
4 covered by at least one rule60 distinct rules in total
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