I think that would be fairly obvious as there would be little point in posting it if it were detected.
Given what it is, a network sniffer, it is classed by some as riskware or a PUP, etc. and that wouldn’t be detected on an on-demand scan unless you had is set to scan for PUPs.
Funny to see that DrWeb misses it, while it is being used here to proof that MSN Sniffer software is 100% clean:
htxp://programs.shammel.net/windows/communications/chat-instant-messaging/virus-report/EtherBoss-MSN-Monitor-MSN-Sniffer/