Suspicious Network Connection from mspaint or msiexec (via network_connection)

ATT&CK techniques

Priv Esc → C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
- T1055Process Injection
Defense Evasion
- T1055Process Injection
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1102Web Service
Exfiltration
Impact

What it detects

This rule detects mspaint.exe or msiexec.exe initiating outbound network connections which is anomalous for these utilities and matches CloudSorcerer APT tradecraft of injecting shellcode into them to proxy cloud command-and-control traffic.

Reporting behind it

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Suspicious Network Connection from mspaint or msiexec (via network_connection)

Pivot detection · T1055 · 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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