raserver.exe
Sources: 300M+ executions observed in the wild.
Summary
Windows Remote Assistance server-side component - accepts incoming Remote Assistance connections for remote support.
raserver.exe is the 301st most commonly executed Windows program in EchoTrail's dataset, observed 33,028 times across enterprise environments. It typically runs from C:\Windows\System32 and it is most often launched by svchost.exe.
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https://api.echotrail.io/v1/process/raserver.exeFree returns the summary. Team returns the full record you see on this page. Endpoint docs
Behavior
Top Paths
- C:\Windows\System32100%
Top Hashes (SHA256)
- 38732626242988cc5b8f97fe8d3b030d483046ef66ea90d7ea3607f1adc0600d76.26%
- cffe6f6033c3049131aebf451b26123125d664c217d56ad043037f905ac9b23510.8%
- 2af56816fe395187cb624ec7c91f2668c758b3341e7ff516024fdaf8437f717c3.02%
- 7a4aa698ea00d4347a1b85a2510c2502fdf23cc5d487079097999be9780f8eb13%
- 4081a6fc67f46aaf3107be428890629fe1b5aea623f64076c572eb77a4f52eb11.63%
- 95470f8de7666c026db37d2a754085ba3832358c422d6218126d293a67b2f60e1.6%
- 7d3430438484305851107dc0726000006e596804784117dc6b4e48b4172b6b5b1.11%
- 16cf1b122b373eeb3db7b172babf5d508f308cd9e76ff92e94622e00f3953b500.83%
- 9e097402f7221c6b9efe63a875be4162cac63d573fedb0a39748eb0f437702a50.79%
- fb242f7b4bcb427be9846a7360d383290d3e181a4d70b06ba55b30f7595fd9dc0.24%
Process Ancestry
Top Grandparents
- services.exe98.78%
- wininit.exe1.22%
Top Parents
- svchost.exe99.2%
- services.exe0.22%
Security Analysis
What does raserver.exe normally do?
Runs when a user accepts a Remote Assistance invitation. Allows a remote helper to view or control the desktop.
When is raserver.exe suspicious?
Running without user-initiated Remote Assistance request. Persistent execution. Running on servers where Remote Assistance is not expected.
How do attackers abuse raserver.exe?
Can be abused for unauthorized remote access. Attackers may use msra.exe /offerRA to initiate unsolicited Remote Assistance if the target machine allows it.
Detection guidance
Monitor for raserver.exe execution on systems where Remote Assistance should be disabled. Correlate with Group Policy settings.
False positive notes
Helpdesk scenarios use Remote Assistance legitimately.
MITRE ATT&CK techniques
Related Processes
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