The Windows Service Center. Sounds reassuring, doesn’t it?
Here’s a typical scenario.
Someone claiming to be working on behalf of Microsoft rings you out of the blue to tell you that there was a problem with your PC, or even that your virus-infected PC is causing problems on the internet, and that your Microsoft licence is going to be suspended unless you give them access to your PC so that they can clear it up.
So they direct you to a site that has a vaguely authentic sounding name and ask you to download and run the software that gives them access to your PC.
(Later on, they’ll tell you that you have to pay them for service and/or installing security software and/or some sort of licence fee, if you let them get that far.)
Fortunately, Paul, who commented recently on one of my articles about support scams on the ESET We Live Security blog, says that he didn’t let them get that far.
When asked to connect to a site calling itself the Windows Service Center, he found that this resulted in downloading an executable file which he declined to run until he’d checked it with anti-virus software.
At this point the scammer told him that his ‘Microsoft licence’ would be withdrawn: instead of being panicked into complying, Paul told him to go ahead and the scammer hung up.
Here’s a screenshot of the "Windows Service Center" at mwgs.webs.com:
Note that webs.com is a legitimate provider of free webspace, and I’m certainly not suggesting that they have any complicity in support scamming. In fact, they reacted quickly and responsibly when we told them of the issue.
This particular page doesn’t actually claim to be a Microsoft site, but it’s more common nowadays for scammers to indicate that they’re working with Microsoft or on Microsoft’s behalf rather than suggesting that they are Microsoft.
In fact, all this page does is serve up remote access software.
The "WELCOME TO SERVER ONE" button links directly to a TeamViewer QS (Quick Support) executable on TeamViewer’s own site
"WELCOME TO SERVER TWO" links directly to the AMMYY Admin executable on the ammyy.com site
"WELCOME TO SERVER THREE" doesn’t link to anything, the last time I looked...
"WELCOME TO SERVER FOUR" links to a ShowMyPC executable on the ShowMyPC site
The oddly titled "MAC WINDOWS SERVER" button is more interesting as it links directly to a OS X disk image file, TeamViewQS.dmg, from which a Mac program can be installed. Support scammers have paid less attention to Mac users in the past, though they have been targeted occasionally)
All such software can be used legitimately for real support. Unfortunately it is also widely used by support scammers.
As previously mentioned, webs.com was also notified, with an explanation of why support scams and sites supporting them are a problem, and it now looks as if the site has been suspended.
There are a few points worth noting here.
If you know how unlikely it is that someone at a call centre somewhere knows anything about your PC, or can magically associate your PC and/or IP address in some way with your phone number, you can head off this sort of rubbish at the start of the conversation. Not that I’d want to spoil the fun for all you guys who enjoy wasting a scammer’s time.
Being cautious when asked to run unfamiliar software is absolutely the right thing to do. Even when the software is known to be used by legitimate support services, there are plenty of trojanized copies of legitimate software out there.
It’s a bad idea to assume that a company not known to you isn’t going to make dishonest use of honest software because they cold-called you and told you that they’re legitimate.
The famous CLSID number used via ASSOC to prove that the scammer knows all about your PC is not some sort of licence number and doesn’t uniquely identify your PC. Many millions of Windows PCs have exactly the same entry.
Practically anyone can implement a web site calling itself something that sounds as if it might actually have something to do with Microsoft. It isn’t even necessarily illegal (depending partly on where it is): there is probably a brand infringement issue, but scammers tend not to worry too much about things like that.
Using a service like webs.com and a generic website template is either rather unprofessional (I don’t think Microsoft would do it) or a sign that someone is trying to launch a site with a minimum of cost and effort because they don’t expect to get away with it indefinitely.
However, be aware that services like webs.com, wordpress.com etc. may offer a custom domain name at relatively small extra cost, so you cannot assume that sites hosted by such providers are always recognizable by the domain name alone.
In any case, there are other sources of cheap domains.
Be on your guard, and stay safe out there.