Tool to find .exe files corrupted by Scan for exe files Virus.Win32.Tenga

Apparently the virus.Win32.Tenga  has corrupted my Library of utilities and small software installation files stored in a separate drive, but has not affected the installed files in \Program Files\.   The original size was in the tens of MB; after corruption the size if hundreds of KB.   Vipre does not find the virus; neither does Malwarebytes.  But occasionally, I get a message that on of the installation exe files cannot be opened due to a virus.   So I am looking for a utility tool software that can scan for corrupted .exe files that have greatly reduced sizes.
Howard222Asked:
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David Johnson, CD, MVPOwnerCommented:
Q1: what is the exact error message that you recieve
Q2: have you checked the last modified date, created date, accessed date? Have all but the last been modified in any way?
A1: make yourself a Standard User. Check your %temp% folder or run Sysinternals Autoruns or Sysinternals Process Explorer and look for strange items.
web_trackerComputer Service TechnicianCommented:
use the fix exe application, That has helped me a number times when I could not run executables. download from here: http://www.bleepingcomputer.com/download/fixexec/
Howard222Author Commented:
David,  
Q1: what is the exact error message that you recieve  - When I open the corrupt .exe the message is: NSIS Error   Installer integrity check has failed.  
Original Size was 23,750 KB  now is 184 KB

Q2: have you checked the last modified date, created date, accessed date? Have all but the last been modified in any way?   The dates are:
Created: Sat May 31, 2014  (yes 2014 - a year ago)
Modified: May 29, 2015
Accessed: Sat May 30, 1015

A1: make yourself a Standard User. Check your %temp% folder or run Sysinternals Autoruns or Sysinternals Process Explorer and look for strange items.   My %temp% are emptied daily so there was no useful info.     I did use Autoruns, as I have many times before and found nothing I was not familiar with.

I would just like to run a scan with a "tool" to find/locate these corrupt files.
Thank you,  Howard W5DA
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Howard222Author Commented:
Web Tracker, fix exe took about 30 seconds, but did not repair.  
Thanks, Howard
David Johnson, CD, MVPOwnerCommented:
then hunt for files modified that should not have been by date.

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web_trackerComputer Service TechnicianCommented:
I guess after reading your post it seems that not all exe files are corrupted just some of them. The application I directed you to only fixes corrupted extensions, where the virus has caused the default application to run the virus, instead of running the exe application, or bat files.  For example the default application for running the exe or bat file would be Picture viewer, the application would open up then an error would popup saying it can't open the exe in picture viewer.

So it seems like only some files are corrupted not all, it may be that the files were actually encrypted, if that is the case you will not be able to decrypted them unless you had the key.

If the files are actually exe apps, can you re-download them?  Another tool you can try is superantispyware, or Rogue killer. Finally if these do not work I would try to run EmsisoftEmergencyKit, this is a last resort because although this program is highly affective in finding malware/viruses it takes a long time to download all the virus definitions and does take quite some time to run a full scan.

Good luck.
Howard222Author Commented:
David,
You got me on to something that is a step forward:  Use Windows File Explorer to search in my "Library of Programs" for *.exe, for file <1M,  This is a very good step forward now I can act on these.  Thanks, Howard
Howard222Author Commented:
Web Tracker,  These "tougher" Malware programs (superantispyware, or Rogue killer, finally  EmsisoftEmergencyKit I had forgotten about -- But I will start working thru them today/tonight to stop this 18 month run by 'tenga'.  I'll report back.   Thanks!  Howard
Howard222Author Commented:
Thank you David; using the search engine for *.exe | <1MB  in the Library found all the corrupt files
Thank you WebTracker - there were remnants of Tenga 32 virus on the PC -  I had to do a major upgrade of my AntiVirus.
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