ThreatSeeker Virus in Piriform emails

It seems to be a reccuring issue that each time Piriform send me an email announcing that the new version of CCleaner is out that tha email is blocked by my ISP email virus scanner (Websense Hosted Security) On todays email the virus is the ThreatSeeker virus. The virus contained in the email changes when each new version of CCleaner is announced and has been happening for severeal months now. Is anybody else picking this up? Do I need to worry?

Many thanks,

Chris

Have you reported this to your ISP?

All my Emails been ok Piriform emails all so far good.