Riskware:W32/NetCat

Classification

Riskware

Riskware

W32

-

Summary

Useful, legitimate software which could possibly be misused for malicious purposes.

Removal

Automatic action

Based on the settings of your F-Secure security product, it may block the file from running, move it to the quarantine where it cannot spread or cause harm, or ask you to select an action.

Suspect a file is incorrectly detected (a False Positive)?

A False Positive is when a file is incorrectly detected as harmful, usually because its code or behavior resembles known harmful programs. A False Positive will usually be fixed in a subsequent database update without any action needed on your part. If you wish, you may also:

  • Check for the latest database updates

    First check if your F-Secure security program is using the latest detection database updates, then try scanning the file again.

  • Submit a sample

    After checking, if you still believe the file is incorrectly detected, you can submit a sample of it for re-analysis.

    NOTE If the file was moved to quarantine, you need to collect the file from quarantine before you can submit it.

  • Exclude a file from further scanning

    If you are certain that the file is safe and want to continue using it, you can exclude it from further scanning by the F-Secure security product.

    Note You need administrative rights to change the settings.

Find out more

Knowledge Base

Find the latest advice in our Community Knowledge Base.

User Guide

See the user guide for your product on the Help Center.

Contact Support

Chat with or call an expert for help.

Submit a sample

Submit a file or URL for further analysis.

Technical Details

This tool is meant for legitimate remote administration purposes by authorized users. Its original design allows it to read and write data across network systems. Unfortunately, this tool has been widely used by malware to perform malicious network routines.

This tool has the following capabilities:

  • Open a local port and listen for connections
  • Send data to a remote location
  • Act as a telnet client or server

It also provides the following options:

  • Allowing broadcasts
  • Hiding in the background
  • Specifying data routes
  • Delaying interval for lines sent
  • Continuing to listen on socket close
  • Using IP address only (not resolving DNS)
  • Dumping traffic to a specified file
  • Randomizing local remote ports
  • Answering to telnet negotiations
  • Operating in UDP mode