Yes it is a check to see if you have Google Toolbar (a nasty piece of software - I never use it myself).
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Malwarebytes identifies the file as a trojan agent, located at C:\Users\Jon\AppData\Local\Adobe\gtbcheck.exe. It downloaded 4 months ago, but hasn't been identified in numerous scans since then.
gccheck.exe is a file that checks for Google Chrome and is located in the same directory. It is not identified as a trojan.
I run Norton and Malwarebytes every night and this file came up in the same place as jonricho but mine has the date of 8-14-14. Both programs are calling it a trojan or trojanagent. Why is it just now being detected, and are there other associated files that I need to look for or should I just let these anti malware programs find them in their own time? BTW, this is not the first time my AV/AM software have flagged something that has been in my drive for awhile. What's up with that?
I would recommend that you ask the antivirus vendor for clarification. It is fairly common for AV vendors to erroneously blacklist legitimate files, particularly immediately after a release; however, they're going to be the best source of information on how and why they've identified a file as problematic, and how to differentiate a legitimate file from a bogus one.
Our distribution process is tightly controlled, and it is incredibly unlikely that anything that we published is malware.
I agree that it is not really malware. Rather it appears to undertake a one time check on whether you have Google Toolbar installed. At least in my case, it did not try to persuade me to install the toolbar. Similarly with gccheck. I guess MWB made a mistake this time (after ignoring it for four months).