defaultapp_helper64.exe
Summary
Default App Helper (64-bit) - assists with setting default application associations.
defaultapp_helper64.exe is the 659th most commonly executed Windows program in EchoTrail's dataset, observed 6,351 times across enterprise environments. It typically runs from C:\Program Files (x86)\AVAST Software\Browser\Application\86.1.6937.199 and it is most often launched by AvastBrowser.exe.
Behavior
Top Paths
- C:\Program Files (x86)\AVAST Software\Browser\Application\86.1.6937.19915.3%
- C:\Program Files (x86)\AVAST Software\Browser\Application\79.0.3060.809.37%
- C:\Program Files (x86)\AVAST Software\Browser\Application\83.1.4957.1178.64%
- C:\Program Files (x86)\AVAST Software\Browser\Application\80.1.3901.1636.79%
- C:\Program Files (x86)\AVAST Software\Browser\Application\84.1.5543.1366.01%
- C:\Program Files (x86)\AVAST Software\Browser\Application\80.0.3764.1505.32%
- C:\Program Files (x86)\AVAST Software\Browser\Application\87.0.7478.895.26%
- C:\Program Files (x86)\AVAST Software\Browser\Application\80.0.3619.1335.23%
- C:\Program Files (x86)\AVAST Software\Browser\Application\77.2.2152.1214.98%
- C:\Program Files (x86)\AVAST Software\Browser\Application\84.0.5270.1064.31%
Top Hashes (SHA256)
- 89e4dd1afb971f7d745bf68d092a077ab4090e3aa88f94fc5952d9459db80a1615.3%
- 8d7f638b16ce6764862f97b1b245a3f2f52d61e7f875251cd86eb274c6a54b469.37%
- b02197b75af948f606062b0ffce637d97002f576ee203458d89bb420d8d238aa8.64%
- 3597f9b2ecbfc46bb16e22fa3607fe1f6b2385fb0cc3bfaf1b88eb2863a2b7686.79%
- e8fb367ccbdc584d29f0a1757c5d28ded5ed4e8546d4a0d96f015cd0aaec458b6.01%
- 6076f9d2088f1a7e4b131ca19528119747b8923abc0d497644fcefe083259d255.32%
- aff569c79052cfafadf383e750b1c6fbdcd314be7157caabef949a189412b36c5.26%
- 09a069bbef3ca5b0045911928554cb63a65536c6eeba1ed08ee59a22852d67695.23%
- 6d3e5e93e3b0b21cdd3028061b24e3306e53442ab0beec918f755c4eb7ef03b74.98%
- d8eba5e4da81b7e41861af66b2322961c3feb9e4b64d36fa420713b2e05f4eb84.31%
Process Ancestry
Top Parents
- AvastBrowser.exe100%
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.