wusa.exe
by Microsoft
Operating System
Summary
Windows Update Standalone Installer — installs .msu update packages
wusa.exe is the 1336th most commonly executed Windows program in EchoTrail's dataset, observed 979 times across enterprise environments. It typically runs from C:\Windows\System32 and it is most often launched by explorer.exe.
1336th
most commonly executed Windows program
979
observed executions
low
statistical confidence
Behavior
Top Paths
- C:\Windows\System3282.53%
- C:\Windows\SysWOW6417.47%
Top Hashes (SHA256)
- ee8c9a8e161047f68b9ac1e81592587c63bc218389430eacac0a8cac3380ab0a36.51%
- 1d3569595f833dffbb08765332ad1971243d2c0e27c4623f47dcdc1cb4441b3723.59%
- e0438c5594a4eeb8515518989ee3a773581f414273b857b885d2201f66a95b0612.92%
- 1e384e490aff301349d27c37139d304edc83cf62571875540ab468e3b0d65c067.08%
- 5aa6b0e7d1839a1e430db80f180a09d7c07657ddc35c3396756d5cbef72b75c84.31%
- 1bbaa81b358f709f0ba6997c0a85914075573b0a77a2ad8048b918b0206229153.59%
- 9a18550136d91fd0af3d8d3e202a5a348ddee9639498f2b5fc9630e83406d7e13.08%
- 64101be948b314c22f6218b07e52fa9148061927c4eccd376bf4be169d9ee59e2.87%
- cb128faf0430ce1a90412546e90a3b6446c74887d696485cc2c3aaf10714a4281.33%
- 1d86701a861ffa88fe050a466e04281a4809c334b16832a84231dc6a5fbc41951.03%
Process Ancestry
Top Grandparents
- OfficeClickToRun.exe70.89%
- explorer.exe9.49%
- userinit.exe8.86%
- svchost.exe5.06%
- services.exe2.53%
- KeePass.exe1.27%
- launcher.exe1.27%
- chrome.exe0.63%
Top Parents
- explorer.exe67.31%
- Integrator.exe11.85%
- dcconfig.exe7.76%
- powershell.exe7.66%
- chrome.exe1.23%
- browser_broker.exe0.82%
- cmd.exe0.2%
- firefox.exe0.2%
- opera.exe0.2%
Rare or environment-specific process names are omitted from ancestry tables. Percentages are of all observed relationships.
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Data from EchoTrail's dataset of ~346M Windows process executions. Last extracted 2026-08-04.