Logmein123 Scam - commands__

I was recently phoned by a person claiming to be employed by a company advanced support based out of California.  He stated that my PC was infected and asked me to type in the "INF" command at the run.  He claimed that this identified all infected files on my computer.  He also asked to run the "Prefetch" command and the "Eventvwr" command.  He claimed that these also identified more malicious code. 

He then asked me to go to www.logmein123.com and enter my six digit code.  I stated that I did not know of any code and he stated that I should have been given one when I purchased the machine.  He gave me a code.  Before I entered it I asked for more details about his comany.  He could not give me a Street address or phone number so I refused to enter the code. 

I guess I was lucky reading the other postings but can someone tell me what the Inf, prefetch and eventvwr commands are for?

Answer
Answer

Congratulations on not falling for that scam!  No legitimate company makes calls like that.  For more information, please see Don’t fall for phony phone tech support in Microsoft's MSDN Security Tips blog .

The things that he asked you to run are standard parts of Windows, and they have nothing to do with finding infected files on your computer:

  • The "INF" command shows the contents of the folder named C:\Windows\Inf, which contains files used in installing the system.
  • The "Prefetch" command shows the contents of the folder named C:\Windows\Prefetch, which contains files used in loading programs.
  • The "Eventvwr" command opens the Event Viewer program, which shows logs of messages created by Windows and other programs as they run.  It's normal to see large numbers of errors and warnings in those logs.

Boulder Computer Maven
Microsoft Most Valuable Professional
Steve Winograd

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Last updated January 6, 2019 Views 7,027 Applies to: