Simple (250 LoC) command line client for AMSI coded for fun.
Usage: C:\test\clamsi.exe -[p/f/s] TARGET [ADDR_RANGE]
-p: process to scan
-f: path to file
-s: string to search
TARGET: PID | file | string
ADDR_RANGE: -p [offset length]
EXAMPLE: C:\test\clamsi.exe -f C:\Windows\System32\calc.exe
C:\test\clamsi.exe -s "Hello World"
C:\test\clamsi.exe -p 1234 0x7ff6990b0000 0x7ff699151000