False positive ONLY when copying to stick

Comodo Internet Security - CIS AV False Positive/Negative Detection Reporting
#1

I copied the skype version 6.21.59.104 to a stick.
Each time it was detected as "Packet.win32.MUPX.gen@129019204
Only when copying.
No matter the heuristic level.

If its scanned direct with comodo, its clean!
Tested with malwarebytes and clam av as well. Also clean.

#2

Hello clockwork,

Please submit the detected file as False Positive using the following link so we can check it:

Best regards,
FlorinG

#3

Its larger than 30mb. How to do that?

Its the digital signed
.exe installer of that skyperversion.

#4

Upload it to VirusTotal and put the link here.
Later they can harvest it from VT or ask you to share it.

#5

It only happens with this file,
and only while being copied to a stick.

#6

Hi clockwork,

This is to inform you that the reported file with SHA1 <3c444bfb2e94ae9e101b9528ed11d9416bbf0495> is not detected by AV database Version <20667> of COMODO Internet Security <8.0.0.4344>.
Please Update you AV database and scan it again.

Best regards
Qiuhui.■■■■

#7

Scan comes up clean, like before.

It still gets detected as above when copying it to a stick. (Update 20669)

I copied other skype installers, nothing like that happens.