Suspicious Peach Sandstorm Password Spray via go-http-client User Agent (via proxy)
- Category
- proxy
- Author
- HuntRule
- Published
- 2026-07-20
- Updated
- 2026-08-28
ATT&CK techniques
Cred AccessRecon
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 inbound authentication traffic carrying the default Go HTTP library user agent go-http-client. Peach Sandstorm used this user agent while conducting password spray attacks against enterprise sign-in endpoints for initial access.
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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