Suspicious SD-WAN Compromise JSP Webshell Access
- Category
- webserver
- Author
- HuntRule
- Published
- 2026-09-12
- Updated
- 2026-09-12
ATT&CK techniques
PersistenceRecon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
What it detects
This rule detects web requests to the JSP webshells dropped during the Cisco Catalyst SD-WAN exploitation, including the XenShell and named sysinit and vmurnp_ikp shells. Access to these attacker-planted JSP files gives operators command execution on the compromised appliance. Requests to these paths indicate webshell interaction following exploitation.
Reporting behind it
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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