Malicious NetSupport RAT Masquerading as systeminfo.exe

ATT&CK techniques

Defense Evasion → C2

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
Defense Evasion
- T1036.005Match Legitimate Resource Name or Location
Cred Access
Discovery
Lateral Movement
Collection
C2
- T1219Remote Access Tools
Exfiltration
Impact

What it detects

This rule detects a process named systeminfo.exe loading a client32.ini configuration file, which is the EVALUSION NetSupport RAT masquerading as the benign Windows utility. The RAT was delivered inside a JPG-wrapped ZIP and run as systeminfo.exe alongside its client32.ini config. The legitimate systeminfo tool never reads a NetSupport config, so this name-and-context mismatch reveals the RAT.

Reporting behind it

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Malicious NetSupport RAT Masquerading as systeminfo.exe

Pivot detection · T1219 · 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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