Suspicious msiexec Remote Passive Install Loader

ATT&CK techniques

Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1218.007Msiexec
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects msiexec installing a package from a remote URL in passive mode, a delivery method used to load StealC and Amadey infostealers. Installing an MSI directly from the internet with a suppressed user interface is a proxy execution technique that evades application controls.

Reporting behind it

Related detections9 linkedT1218.007 — drag to rearrange

Suspicious Silent MSI Installation of Non-Standard BIN Payload via Msiexec (via process_creation)

Suspicious Antivirus Uninstallation via msiexec (via process_creation)

Suspicious Screensaver File Executed as Installer via process_creation

Suspicious Remote MSI Installation from Amazon S3 via msiexec

Suspicious Remote MSI Install of Dokan Driver via msiexec

Malicious Remote MSI Install of RuntimeBroker via msiexec

Suspicious Remote MSI Installation via msiexec from HTTP URL

Suspicious Msiexec Remote MSI Installation via Command Line

Malicious ScreenConnect Client Installation via Msiexec (via process_creation)

Suspicious msiexec Remote Passive Install Loader

Pivot detection · T1218.007 · 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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