Malicious SparrowDoor Process Hollowing of colorcpl.exe

ATT&CK techniques

Priv Esc → Defense Evasion

Recon
Resource Dev
Initial Access
Execution
Persistence
Priv Esc
- T1055.012Process Hollowing
Defense Evasion
- T1055.012Process Hollowing
Cred Access
Discovery
Lateral Movement
Collection
C2
Exfiltration
Impact

What it detects

This rule detects execution of the legitimate colorcpl.exe utility with the numeric command line argument 11, a pattern used by the FamousSparrow group to launch a hollowed process hosting the SparrowDoor backdoor. colorcpl.exe is a color management applet that does not normally accept such arguments, so this invocation indicates process hollowing for defense evasion.

Reporting behind it

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Suspicious AppLaunch.exe Execution as Process Hollowing Target

Malicious SparrowDoor Process Hollowing of colorcpl.exe

Pivot detection · T1055.012 · 9 related

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