MSASCui.exe
Sources: 300M+ executions observed in the wild.
Summary
Microsoft Antimalware Security Center User Interface (legacy) - older Windows Defender UI component for security status display.
MSASCui.exe is the 455th most commonly executed Windows program in EchoTrail's dataset, observed 14,062 times across enterprise environments. It typically runs from C:\Program Files\Windows Defender and it is most often launched by MSASCui.exe.
Get this in your tools
The same record for msascui.exe, by REST or as an MCP tool. Free key, no card.
curl -H "Authorization: Bearer $ECHOTRAIL_KEY" \
https://api.echotrail.io/v1/process/msascui.exeFree returns the summary. Team returns the full record you see on this page. Endpoint docs
Behavior
Top Paths
- C:\Program Files\Windows Defender99.99%
- C:\ProgramData\...0.01%
Top Hashes (SHA256)
- 3ca61ab5ce755b842edfed9ffaebf4f0248e3ffcbb543c2e8e776646e7e2331498.83%
- d38fe568cb0229679242af1dbb31688596730118c3b955174fe155c04959109a0.81%
- 9cff5557fe89fbac1ea57dd48391de6507b1a9c215df8670f667487c32697e7f0.14%
- 708c3614edb85768e5ead4cd04b3a806bd70140cd672cde0d7afdd65d5159e0a0.07%
- 34e718e7c5644f147bec3af69f9fa789be1220e56a7bf827bf1c11afc9c3b0d00.03%
- 809cd5db703a6dfd1940dad9521d9ae34f12d7475c100c1742f51407dac737840.03%
- 03c4a4230a3286ece6aa16576f3b524fb6d201f96d6bc8ca17b5f9259ae69e140.02%
- 31b38ec7b3dc43241ccdd79faedbf8c1b5cc6d638f1ebcc11b1d1005ef4151770.02%
- 6e605b59455699f170172cd3d766779c752a489e8af026c58db2fb224755f57e0.02%
- 8241ac49819b97dbf864f17d45e9332e39cfb9786639663af5782dddc61df1060.02%
Process Ancestry
Top Grandparents
- MSASCui.exe98.8%
- LTSVC.exe0.85%
- userinit.exe0.24%
- svchost.exe0.05%
- cmd.exe0.03%
- explorer.exe0.03%
Top Parents
- MSASCui.exe98.8%
- cmd.exe0.85%
- explorer.exe0.27%
- MSASCuiL.exe0.03%
Top Children
- MSASCui.exe99.97%
- MSASCuiL.exe0.03%
Security Analysis
What does MSASCui.exe normally do?
Legacy Windows Defender UI. Shows antimalware protection status in system tray.
False positive notes
Normal on older Windows versions.
Related Processes
Ask Rocky about MSASCui.exe
Rocky is the free chat demo. It answers from this same dataset, no account needed.
This page is the Team-tier API record for MSASCui.exe. The free tier returns the summary, 500 lookups a month. Or ask Rocky.