Intrusion Prevention

TFTP.Request.NC.EXE.File

Description

This signature detectings exe file transmission over TFTP, and is not for any specific vulnerability.
It is uncommon that an exe file be transmitted by TFTP. When it happens, the user should check whether it is permitted. This could indicate possible worm activity.

Affected Products

Any unprotected Windows system may be affected.

Impact

Malicious program execution

Recommended Actions

Check whether it's permitted to download NC.EXE file to your PC over TFTP and use antivirus software to scan the system.