SppExtComObj.Exe
Sources: 300M+ executions observed in the wild.
Summary
Software Protection Platform external COM object server - handles KMS (Key Management Service) activation communications for Windows licensing.
SppExtComObj.Exe is the 404th most commonly executed Windows program in EchoTrail's dataset, observed 18,299 times across enterprise environments. It typically runs from C:\Windows\System32 and it is most often launched by svchost.exe.
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Behavior
Top Paths
- C:\Windows\System32100%
Top Hashes (SHA256)
- 4a9bffaeb2068bf4ff2a34560c8d8ca11f0d9be02b1e1cbbce8c05f3e499759c48.99%
- 28b704870730b01d31e24a51502fd4bfcf23f15d2f482ea4aadc12da0f5f806515.76%
- 5d7aec13aba1c1e2cfb788dfddb3b31ce4ff879c7745c0728dcb8530251ffdbb11.33%
- 41275d40da00b875283f04ce27856a8d71e7b6efba05533296c3fcd2f8320f0110.08%
- 6b23e062c63532e7bc44f8b9c951180d7b2625d805a1be8285c883af46c919414.75%
- a0fdd9f6a04ea80177660b2d7d22cbcabb507744f8cc43dd16bb6d10f2432f3b3.9%
- e8d4bf7080337ff6dac6e4e99bff0c2234106238865c8e05d7ea64b9c5e93f0a1.97%
- 7daa52b0cb8bd2a0c590e4a1e049ae4720091da7e759a865b85d97af4391eb1f1.34%
- 8906d8d8bcd7c8302a3e56ea2ebd0357748acc9d3fda91925609c742384b9cc20.99%
- edf5cab55e30a8af841775cc7f16e6727569941eef19d71415af244d26b9b2ed0.35%
Process Ancestry
Top Grandparents
- services.exe100%
Top Parents
- svchost.exe100%
Top Children
- slui.exe100%
Security Analysis
What does SppExtComObj.Exe normally do?
Runs during Windows activation and periodic license validation. Communicates with KMS servers on port 1688.
When is SppExtComObj.Exe suspicious?
Connecting to non-corporate KMS servers. Frequent unexpected execution. Running from non-System32 path.
How do attackers abuse SppExtComObj.Exe?
Some KMS activation tools (piracy-related) replace or hook this process. Not directly useful for attackers.
Detection guidance
Monitor for connections to unexpected KMS server addresses.
False positive notes
Normal periodic execution for license validation in KMS-activated environments.
Related Processes
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