RemComSvc.exe
Sources: 300M+ executions observed in the wild.
Summary
RemCom remote service component. Open-source PsExec alternative that enables remote command execution. The service binary is deployed to target machines for remote shell access. Its presence is a strong indicator of lateral movement.
RemComSvc.exe is the 1749th most commonly executed Windows program in EchoTrail's dataset, observed 454 times across enterprise environments. It typically runs from C:\Windows\SysWOW64 and it is most often launched by services.exe.
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Behavior
Top Paths
- C:\Windows\SysWOW64100%
Top Hashes (SHA256)
- 05d433ed3633a2e3ed1125c3cd629f18beb92f484c21c1b767290a368b98bdc0100%
Process Ancestry
Top Parents
- services.exe100%
Top Children
- cmd.exe100%
Security Analysis
What does RemComSvc.exe normally do?
Not expected in most environments. RemCom is an open-source tool — legitimate use is limited to IT administration in environments that specifically deploy it. The service binary is pushed to the target machine's ADMIN$ share and executed via SCM.
When is RemComSvc.exe suspicious?
Any presence of remcomsvc.exe. Service creation for RemComSvc. File creation in C:\Windows\ or ADMIN$ share. Network connections on named pipes.
How do attackers abuse RemComSvc.exe?
LATERAL MOVEMENT: RemCom works identically to PsExec — the attacker runs remcom.exe on their machine, which copies remcomsvc.exe to the target's ADMIN$ share, creates and starts a service, and establishes interactive command execution over named pipes. Unlike PsExec, RemCom is open-source and unsigned, so it may evade detections specifically targeting Sysinternals binaries. Used by red teams and threat actors as a PsExec alternative when the Sysinternals version is detected/blocked.
Detection guidance
HIGH-CONFIDENCE DETECTIONS: - remcomsvc.exe file creation anywhere on the system - Service creation for "RemComSvc" or similar - remcomsvc.exe process execution DATA SOURCES: File creation (Sysmon 11), service installation (System Event 7045), process creation (Sysmon 1)
False positive notes
Very few legitimate uses. Some IT shops may use RemCom as a free PsExec alternative, but this is uncommon in enterprise environments.
Related Processes
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