Suspicious curl Spawning Script Host for Latrodectus Delivery

ATT&CK techniques

Execution → C2

Recon
Resource Dev
Initial Access
Execution
- T1059.003Windows Command Shell
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1105Ingress Tool Transfer
Exfiltration
Impact

What it detects

This rule detects curl.exe spawning the Windows script host to run JScript or VBScript. The ClickFix to Latrodectus infection chain uses curl to fetch a JavaScript payload which is then executed via cscript. Download utility parenting a script interpreter is highly abnormal on endpoints and marks a malware staging step.

Reporting behind it

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Suspicious Script Host Downloader via MSXML and WScript Shell

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Suspicious curl Spawning Script Host for Latrodectus Delivery

Pivot detection · T1105 · 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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