Suspicious CloudZ RAT Payload Download via curl to ProgramData
- Product
- windows
- Category
- process_creation
- Author
- HuntRule
- Published
- 2026-09-12
- Updated
- 2026-09-12
ATT&CK techniques
C2Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
Lateral Movement
Collection
Exfiltration
Impact
What it detects
This rule detects curl saving a remote file into the ProgramData Microsoft WindowsDoc directory, matching the CloudZ RAT staging chain that writes update.txt into a fabricated WindowsDoc folder. Downloading a payload directly into a Microsoft-themed ProgramData path masquerades attacker tooling as system content. This ingress behavior indicates active payload retrieval.
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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