Malicious StyleSmuggler (CVE-2026-75650) Web Shell Dropped In Magento Product Image Cache (via file_event)
- Product
- linux
- Category
- file_event
- Author
- HuntRule
- Published
- 2026-09-10
- Updated
- 2026-09-10
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
Detects creation of a PHP web shell under the Magento product image cache using the ss_<10hex>/sync_<10hex>.php naming pattern. The web shell was dropped by a second threat actor observed exploiting StyleSmuggler (CVE-2026-75650), separate from the operator deploying the Rust implant. The shell returns 404 unless the request carries the expected X-Cache-Token header and executes arbitrary PHP supplied in the task parameter.
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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