I just downloaded and installed the latest Rapid release defs 12/4 rev 33. These also see Tsizepro.exe as a virus (Backdoor.Greybird). The new definitions also make you reboot afterwards, while the 12/4 rev 6 definitions do not. Seems like a step backwards to me.
I have run this file through ThreatExpert and VirusTotal with mixed results. We have had TreeSize Pro on systems for a couple of years now and have not run into this issue until we upgraded to SEP 11.0.5 (MU5) this past week. Prior to the upgrade, some systems were on SEP 11.0.4 (MR4) with a majority still on SAV 10.x. Only the MU5 clients see this as a virus.
Tsizepro.exe is part of the original installation of Tree Size Pro. For all my tests I copied the TsizePro.exe file from a fresh installation on a fresh image.
I have submitted a false positive request form via the link provided by Cycletech. I also sent an inquiry to JAM software.
I'll post my results.