Windows 7 still allows unsafe files to be disguised as safe files
Read MoreThe good folks at F-Secure uncover the first Windows 7 security fail … and it’s a classic.
The issue in question is nothing new. In fact, it’s been around for so long that I didn’t even bother checking to see if it had been fixed.
You see, in Windows NT, 2000, XP and Vista, Explorer used to Hide extensions for known file types. And virus writers used this “feature” to make people mistake executables for stuff such as document files.
The trick was to rename VIRUS.EXE to VIRUS.TXT.EXE or VIRUS.JPG.EXE, and Windows would hide the .EXE part of the filename.
Additionally, virus writers would change the icon inside the executable to look like the icon of a text file or an image, and everybody would be fooled.
Surely this won’t work in Windows 7.
Lets try.
Hmm. It sure looks like a text file in Explorer:
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My Computer
- Computer Manufacturer/Model Number
- Custom Build
- OS
- win 7 build 7600.16385 x64
- CPU
- AMD Athlon Dual core 7750 2.7GHz
- Motherboard
- Gigabyte GA78MA s2h
- Memory
- 4GB 800Mhz
- Graphics Card(s)
- ATI HD 3200 IGP
- Monitor(s) Displays
- Acer 15 inch
- Screen Resolution
- 1280x720
- Hard Drives
- Seagate 1 TB
- Keyboard
- Logitech
- Mouse
- Logitech
- Internet Speed
- Airtel DSL 2Mbps
