Worm:W32/NetSky.J

Classification

Category:Malware

Type:Email-Worm

Platform:W32

Aliases:

NetSky.J, W32/NetSky.J@mm, I-Worm.NetSky.j, W32.NetSky.J@mm

Summary

A new variant of Netsky worm - Netsky.J was found on March 8th, 2004.

Removal

Based on the settings of your F-Secure security product, it will either move the file to the quarantine where it cannot spread or cause harm, or remove it.

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 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.

Technical Details

Descriptions of all previous NetSky worm variants can be found here:

The worm's file is a PE executable file 27648 bytes long.

NetSky.J worm has a few modifications comparing to previous variants:

The worm uses a different mutex: "SkYnEt_AVP"
The worm has message for Bagle And Mydoom worm authors in the same lines as previous ones.
The worm uses the following subject texts:
Where %s will be substituted by some text.
The worm uses the following message body texts:
The worm installs itself to system as avpguard.exe file.