Suspicious Host Recon via ConvertFrom-Csv and ConvertTo-Json

ATT&CK techniques

Discovery

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
Cred Access
Discovery
- T1082System Information Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects PowerShell piping CSV-formatted system inventory output into ConvertFrom-Csv and ConvertTo-Json, a recon idiom used by the Interlock backdoor. The malware wrapped systeminfo, tasklist and drive enumeration in this JSON conversion pipeline to serialize host data for exfiltration to its C2. The structured serialization of native recon commands distinguishes automated collection from routine administration.

Reporting behind it

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Suspicious Host Recon via ConvertFrom-Csv and ConvertTo-Json

Pivot detection · T1082 · 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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