CompatTelRunner.exe
Sources: 300M+ executions observed in the wild.
Summary
Microsoft Compatibility Telemetry runner collects and sends system diagnostic and usage data to Microsoft to help improve Windows compatibility.
CompatTelRunner.exe is the 78th most commonly executed Windows program in EchoTrail's dataset, observed 349,453 times across enterprise environments. It typically runs from C:\Windows\System32 and it is most often launched by CompatTelRunner.exe.
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Behavior
Top Paths
- C:\Windows\System32100%
- C:\Windows\winsxs\amd64_microsoft-windows-a..xperience-inventory_31bf3856ad364e35_6.1.7601.24085_none_e8ae3348fecc7a74<0.01%
Top Hashes (SHA256)
- c52b831c4471e30ef6bd816db7b62fefeb3fa4ef0ce2cf46d70e527f624abe2d10.02%
- 2bf5d8e400fe776b3a9f5400ba212ad8d638cc44e7f906e7800be5054445eecc7.9%
- 924405fd4df46b0a1d955aa492f441b938f051cc830ab494e88398def701fc1f6.94%
- 2967699a953d5690222655124fbb79accdbbe7714f7698fcadc1815b1684e81b6.55%
- 62e5b42703136314e0eabc77a716d5e2b0ea529b5833363d8e13ebf5dfd4dda35.99%
- 8b0bbf61613c57a8f37695a18c0b171c8c190c0a753c199a7acdffed67185efc4.41%
- 35a00702e52638bca9b8870d33e2193d6fe38f0ffa49b59bb555c6610a3a24914.35%
- 42d422f58e134eb70b2627c19bec411a54668b799af9b6e85458f3437d4a3ea03.96%
- 06d91ae93c7b0a82a168e4feeeb830b77bb687336448a14cd496aa27a8d75b483.66%
- d795e30ee3f0514ed8980eff5e0fe38a018fd05942d9aa7a5abf06ade1dcce333.59%
Process Ancestry
Top Grandparents
- svchost.exe51.53%
- services.exe35%
- CompatTelRunner.exe12.82%
- wininit.exe0.59%
- remsh.exe0.05%
- msiexec.exe0.01%
- sedlauncher.exe<0.01%
- sedsvc.exe<0.01%
Top Parents
- CompatTelRunner.exe64.52%
- svchost.exe34.85%
- services.exe0.54%
- remsh.exe0.05%
- sedlauncher.exe0.04%
- sedsvc.exe<0.01%
- backgroundTaskHost.exe<0.01%
- rundll32.exe<0.01%
- explorer.exe<0.01%
Top Children
- CompatTelRunner.exe53.77%
- conhost.exe34.98%
- powershell.exe9.05%
- rundll32.exe1.56%
- DismHost.exe0.61%
- WerFault.exe0.02%
- DeviceCensus.exe<0.01%
- mscorsvw.exe<0.01%
Security Analysis
What does CompatTelRunner.exe normally do?
Located in C:\Windows\System32 or standard Windows/Office paths. Part of normal Windows or Office operations.
When is CompatTelRunner.exe suspicious?
Running from non-standard paths. Parent process other than expected. Spawning shells or unusual child processes.
How do attackers abuse CompatTelRunner.exe?
Not commonly abused.
Detection guidance
Low priority. Validate path and parent process.
False positive notes
Normal system/Office operation.
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