rarextinstaller.exe
by win.rar GmbH
Sources: observed in the EchoTrail lab on Windows 11.
Summary
WinRAR shell extension installer (WinRAR, Alexander Roshal)
rarextinstaller.exe is not in the 2025 snapshot. It was observed in EchoTrail's behavior lab on Windows 11 24H2 on 2026-09-12 installed from winget package RARLab.WinRAR.
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The same record for rarextinstaller.exe, by REST or as an MCP tool. Free key, no card.
curl -H "Authorization: Bearer $ECHOTRAIL_KEY" \
https://api.echotrail.io/v1/process/rarextinstaller.exeFree returns the summary. Team returns the full record you see on this page. Endpoint docs
n/a
most commonly executed Windows program
n/a
observed endpoint executions
Behavior
Top Paths
- C:\Program Files\WinRAR
Top Hashes (SHA256)
- 0e87a2551e1b6a50b20529d44d1a0e0cbdb25e464310ba301129f097d913eecc
Process Ancestry
Top Grandparents
Top Parents
Lab record
- Installed from
- winget RARLab.WinRAR 7.23.0
- Publisher
- win.rar GmbH
- Persistence
- none
- Network
- 1 destination
- Command lines
- 3 patterns (6 launches)
- DLL loads
- 67 patterns (248 loads)
- Registry writes
- 80 patterns (341 writes)
- File writes
- 6 patterns (26 writes)
- HTTP requests
- 4 patterns (6 requests)
- TLS connections
- 0 patterns (0 handshakes)
- Named pipes
- 0 patterns (0 events)
- Process access
- 0 patterns (0 events)
- Driver loads
- 0 patterns (0 loads)
- PowerShell blocks
- 0 patterns (0 blocks)
- Remote threads
- 0 patterns (0 events)
- Audit events
- 0 patterns (0 events)
Full record on Team.
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