HamsaUpdate Wiper Trigger via F5UPDATER ConfirmDeleteFiles Argument (via process_creation)

ATT&CK techniques

Impact

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact
- T1485Data Destruction

What it detects

This rule detects execution of the F5UPDATER wiper masquerading as an F5 update tool with the ConfirmDeleteFiles argument that triggers destructive file deletion without a confirmation prompt in Operation HamsaUpdate against Israeli infrastructure. The specific loader name paired with this argument marks the transition from staging to data destruction.

Reporting behind it

Related detections9 linkedT1485 — drag to rearrange

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Suspicious Free Space Wipe via cipher.exe

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Suspicious Secure Deletion of Free Space via Cipher (via process_creation)

HamsaUpdate Wiper Trigger via F5UPDATER ConfirmDeleteFiles Argument (via process_creation)

Pivot detection · T1485 · 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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