CyUpdate.exe
Summary
Cylance update agent. Manages updates for Cylance (now BlackBerry) endpoint protection AI-based antivirus.
CyUpdate.exe is the 141st most commonly executed Windows program in EchoTrail's dataset, observed 127,626 times across enterprise environments. It typically runs from C:\Program Files\Cylance and it is most often launched by CylanceSvc.exe.
Behavior
Top Paths
- C:\Program Files\Cylance76.01%
- C:\Program Files\Cylance\Desktop23.99%
Top Hashes (SHA256)
- 3a44be8bd8e83e2034009e0aaeeabb8b218f167ba637e4f3c46e4b397995036975.95%
- 0c36531487f828f6dd206980e2847a920f49ff7d9992ca2bb5ab870dc29e2f5e17.19%
- 8d26140f68772eaaddce14e2c99ed673af50ee6e6dc99c107829b662e612a9c02.47%
- 399d5c1425fa5a60d16b2c5b48bac0f0c007df898074bd8fe92db498a9341bfa1.16%
- 532efc09e2e28a473cc5f1f657eb42533d2b194659415ff0da8f6b7e3b0378800.69%
- 4830cc37bbf0e9475abc9478ace6fbbad494c3931efe644936f4fd279ae8dd620.52%
- d37abb16097acd4a88f3c3d5ab243bda77c603a3b5a82809a415bdb2bc9af5e70.42%
- 83239872649e3bd2a02a7a854de61c8828c28ef1d5b60ff74802a082a68d96b70.41%
- 729328bc800c4091b679ee7474942e773ae9b8549e1524ce2ba7581682eebbdc0.22%
- e409b4a8c8b7bf726a5dc661bcf2ca8379b9ccd6abfbed17c189423a53d894c10.14%
Process Ancestry
Top Grandparents
- services.exe100%
Top Parents
- CylanceSvc.exe100%
Top Children
- conhost.exe97.07%
- mofcomp.exe0.9%
- CylanceSvc.exe0.79%
- CylanceUI.exe0.4%
- WerFault.exe<0.01%
Rare or environment-specific process names are omitted from ancestry tables. Percentages are of all observed relationships.
Security Analysis
What does CyUpdate.exe normally do?
Part of BlackBerry (Cylance) endpoint protection suite. Runs as a service or scheduled task.
When is CyUpdate.exe suspicious?
Running from unexpected paths outside the vendor installation directory.
How do attackers abuse CyUpdate.exe?
Not directly abused. As security products, they are targets for tampering or disabling.
Detection guidance
Monitor for these processes being stopped or their files being modified (indicates attacker attempting to disable security tooling).
False positive notes
Normal BlackBerry (Cylance) operation.
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Data from EchoTrail's dataset of ~346M Windows process executions. Last extracted 2026-08-04.