Malicious JSP Webshell Written to Ivanti EPMM MIFS Webapps Directory

ATT&CK techniques

Persistence

Recon
Resource Dev
Initial Access
Execution
Persistence
- T1505.003Web Shell
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects a JSP file being created under the Ivanti EPMM mifs Tomcat webapps directory, the webshell drop location observed after CVE-2025-4427 and CVE-2025-4428 exploitation. It matters because a JSP file here is a persistent server side backdoor rather than legitimate application content.

Reporting behind it

Related detections9 linkedT1505.003 — drag to rearrange

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Malicious JSP Webshell Written to Ivanti EPMM MIFS Webapps Directory

Pivot detection · T1505.003 · 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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