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What is defwatch.exe?

Part of Symantec AntiVirus by Symantec

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How does defwatch.exe run?

Service - defwatch.exe runs as a background Windows service called 'DefWatch' (Symantec AntiVirus Definition Watcher). This service runs as the SYSTEM account with extensive privileges on the local computer, and acts as the computer on the network. Symantec AntiVirus Definition Watcher runs as a standard Windows service loaded by the Windows Service Controller (services.exe).


What is the community is seeing?What is the community is doing?
About 0.1% of all Boost users have the defwatch.exe process running.Of the 0.1% of defwatch.exe users, 21.0% have disabled it.
How resource intensive is defwatch.exe?
Comparison based on the average resource utilization across all programs.
0.00021% CPU2059.5%
Average CPU utilization across all programs is 0.00001%.
     1.79 MB RAM8.3%
Average private memory utilization across all programs is 21.53 MB.
         5 GDI objects3.3%
Average number of GUI GDI and USER objects for all programs is 150.
Typical file (disk image) location:
C:\Program Files\symantec client security\symantec antivirus\defwatch.exe

Are there other versions of Symantec AntiVirus?

What else is related?

What Windows OS versions does this run on?

Microsoft Windows XP (5.1.2600.196608)

About Symantec Corporation

Symantec provides security, storage and systems management software for business and individual use. The company helps customers protect their information, iden More...
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File details

File name: defwatch.exe
Publisher: Symantec Corporation (verified)
Name: Symantec AntiVirus
Description: Virus Definition Daemon
Size: 30.69 KB
Original file name: DefWatch.exe

Digital certificate

Certificate authority: VeriSign
Effective date: 11/8/2004
Expiration date: 11/21/2005

Resource utilization

CPU utilization averages
Total CPU: 0.0002131269%
Privileged CPU: 0.0000071737%
User CPU: 0.00020595320394%
Privileged CPU time: 103125 ms
Privileged CPU time /min: 0 ms
Memory utilization averages
Committed memory: 38.22 MB
Peak committed memory: 45.74 MB
Paged memory: 1.79 MB
Peak paged memory: 2.99 MB
Paged system memory: 65.99 KB
Non-paged system memory: 3.35 KB
Working set memory: 4.94 MB
Peak working set memory: 5.88 MB
Min working set memory: 4.94 MB
Private memory: 1.79 MB
Page faults: 1,671
Page faults /min: 0
Process I/O averages
Total read operations: 118,903
Total read transfer: 456.22 MB
Total write operations: 319
Total write transfer: 2.8 KB
Total other operations: 3,728
Total other transfer: 2.8 MB
GUI Object Averages
GDI objects: 5
USER objects: 2
Handle count average: 52
Thread count average: 5

Process details

Runs as (owner): System
Integrety level: Undefined
Windows platform: 32-bit
Runs as a service: Yes
Process Command
"C:\Program Files\Symantec AntiVirus\DefWatch.exe"

Service details

Name: Symantec AntiVirus Definition Watcher
Service name: DefWatch
Service type: Win32OwnProcess, InteractiveProcess
Description: “Monitors and maintains virus definitions.”

Image hashes

MD5: 9709d3d9e592d3217353f3fafe29faa3
SHA-1: d26b21d28051a6d1fdc6accb532ea4a01c7f0c41
SHA-256: 94dfeb72257e2953b52691aadb63f3bdff72428145a1d5cfd1d7649c92f3dd75

PE image details

Subsystem: Windows GUI
Langauge*: Microsoft Visual C++ 7.1
File packed: No
Import Table
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