Malicious Modification of Ivanti web Binary by TRAILBLAZE Injection (via file_event)

ATT&CK techniques

Priv Esc → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
- T1055Process Injection
Defense Evasion
- T1055Process Injection
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects writes to the Ivanti Connect Secure /home/bin/web process binary, the target of the in-memory TRAILBLAZE and BRUSHFIRE injection chain during CVE-2025-22457 exploitation. Modification of this core appliance binary indicates implant injection and compromise.

Reporting behind it

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Malicious Modification of Ivanti web Binary by TRAILBLAZE Injection (via file_event)

Pivot detection · T1055 · 9 related

Detection content is published as a reviewed draft. Tune thresholds and exclusions against your own telemetry before enabling this rule for alerting.

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