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change

Remote Desktop Services MultiUser Change Utility Located at: c:\windows\system32\change.exe; c:\windows\syswow64\change.exe.

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change
change

Sandbox: execFile · Timeout: 30s

Capabilities

security.execution.command

Contract

Outputs

process.output

Command execution output

Side effects: process_spawn

Workflow Edges

Produces

process.output

Resource Profile

ResourceValue
CPUlow
Memory16 MB
Networklow
Disk I/Olow

Examples

Once executed, `change.exe` will execute `chgusr.exe` in the same folder. Thus, if `change.exe` is copied to a folder and an arbitrary executable is renamed to `chgusr.exe`, `change.exe` will spawn it. Instead of `user`, it is also possible to use `port` or `logon` as command-line option. (Execute an arbitrary executable via trusted system executable.)

change.exe user

Detection

TypeRule / Indicator
ioc change.exe being executed and executes a child process outside of its normal path of c:\windows\system32\ or c:\windows\syswow64\

Documentation

change

change is a Windows LOLBin. Remote Desktop Services MultiUser Change Utility Located at: c:\windows\system32\change.exe; c:\windows\syswow64\change.exe.