wuauclt.exe
Summary
Windows Update AutoUpdate Client (legacy) - manages automatic update checks and installations on older Windows versions.
wuauclt.exe is the 238th most commonly executed Windows program in EchoTrail's dataset, observed 56,400 times across enterprise environments. It typically runs from C:\Windows\System32 and it is most often launched by svchost.exe.
Behavior
Top Paths
- C:\Windows\System3299.39%
- C:\Windows\UUS\amd640.61%
Top Hashes (SHA256)
- 34d09b36bffa4188c9a2a766f10a7efeeffa43597c5776c692beef1c827a5cfa11.3%
- 81df3ba03dab44007b3f32b8419ff209327febdfbdce389485b5ccaa0fca06fe9.98%
- 5a8879ad057223ab6f99af895d616dbbe56011347d00e0be7c6f6c5491c1ef707.11%
- e666ac2934a9ba6c65531e4e258c9bebd7c311c6a378a6acceffdf7f9741b4a86.94%
- 2423ce1293c1980ee7dd4543efeb48b69634dbce875c830e7f8cd87f3c6d25b46.09%
- cc855323b6ab7259c92bd1310211dd95174e43be2f46c828e38f0060dd2e44885.83%
- 62aff13b933c69c3cf2dbc4d29fe2d7c19e15226d65652455726b08be66ad94c4.95%
- d25642f358b16b5c6053d2b4ac9814579fb3f91359bd7e73f373d231d842b6ae3.19%
- efa27c2ee5a3f1fe4a1d59023702560614aa55fb3067be93b41b1ae2588eadff2.86%
- 0b31bad785ad6505596a9921058339d61bb6407682ac6953eca27ed075cb8c472.65%
Process Ancestry
Top Grandparents
- services.exe99.99%
- chrome.exe0.01%
- firefox.exe0.01%
Top Parents
- svchost.exe84.86%
- MoUsoCoreWorker.exe15.09%
- ServerManager.exe<0.01%
Top Children
- AM_Delta.exe21.75%
- MpSigStub.exe4.93%
- updateplatform.exe2.87%
- AM_Base_Patch1.exe2.72%
- WindowsUpdateBox.exe0.87%
- AM_Engine.exe0.73%
- AM_Base.exe0.56%
- unifiedinstaller.exe0.52%
- mpas-d.exe0.25%
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.