EchoTrail

wwahost.exe

by Microsoft
Operating System

Sources: 300M+ executions observed in the wild.

Summary

Windows Web Application Host - hosts WWA (Windows Web Apps) built on HTML/JavaScript.

wwahost.exe is the 612th most commonly executed Windows program in EchoTrail's dataset, observed 7,474 times across enterprise environments. It typically runs from C:\Windows\System32 and it is most often launched by svchost.exe.

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The same record for wwahost.exe, by REST or as an MCP tool. Free key, no card.

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curl -H "Authorization: Bearer $ECHOTRAIL_KEY" \
  https://api.echotrail.io/v1/process/wwahost.exe

Free returns the summary. Team returns the full record you see on this page. Endpoint docs

612th
most commonly executed Windows program
7,474
observed endpoint executions

Behavior

Top Paths

  • C:\Windows\System3299.92%
  • C:\Windows\SysWOW640.04%
  • C:\Windows\Temp\...0.04%

Top Hashes (SHA256)

  • 7abdf4c9015a8dd42269fd9f7614106a98aef6265d6ec8ac8e2b4b6b16d7fec552.23%
  • f315b2d1e49cdc203787cf0177f65f03405546779e6eec5503cffd8868d874539.93%
  • 7ed6b168f43f1283bde9b43e1fa474a59ede1b9df40c8f5b67d9577acae4b42e9.26%
  • 6938098bd4e28de9688c443f2b1edf9fe687e75292d3cb78fa4aa450a1e91f526.91%
  • 1b3069159897dbbb2518c1698a4a62fde15e5475717ca177a3677b9e9d5fa7f95.81%
  • 17a1d70819b2d6d8f58e46d9d00c20d911a2103c7535a16a22898b5aa0dd1e693.27%
  • 499d7300f7388d7a7fe2d92ef7ab409d27172257282255b2bced7fb14b4098962.98%
  • a5c27fa5ecde863cb961c072ac824ecf44ce4245ead96a116baa375482c6217e2.88%
  • 5467ac9a003b7b9dc6954f4c88e5b00aba846935c2b4facec893ee1aef55373e1.69%
  • cf7c823de06062bf28cc4ce2afa2307f489dd6ea981b0b4e8a0a6e11dc68a4050.92%

Code Signing

Signers by share of executions

  • Microsoft WindowsValid
    Catalog signed · 1 hash
    100%
    Chain
    1. Microsoft Windows
    2. Microsoft Windows Production PCA 2011
    3. Microsoft Root Certificate Authority 2010
    Valid
    • Apr 16, 2026 to Oct 17, 2026
    Hashes
    • e380daf6fcb93e9741e302cb29760adf90f3d8625eedba604cc7e29aa4673c4b100% of executions, first seen Sep 16, 2026

Full certificate detail on Team.

Process Ancestry

Top Grandparents

Top Parents

Top Children

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This page is the Team-tier API record for wwahost.exe. The free tier returns the summary, 500 lookups a month. Or ask Rocky.