Net-Worm:W32/Sasser.C

Classification

Malware

-

-

Sasser.C, Worm.Win32.Sasser.c, W32/Sasser.C

Summary

Sasser.C is an Internet worm spreading through the MS04-011 (LSASS) vulnerability.

Removal

Automatic action

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.

Eliminating a Local Network Outbreak

If the infection is in a local network, please follow the instructions on this webpage:

Manual Disinfection

To manually disinfect an infected system, first apply the Microsoft patch MS04-011, then use Task Manager to kill the "avserve2.exe" process, then delete the file AVSERVE2.EXE from your Windows directory and reboot. For step-by-step instructions, see Microsoft's site: https://www.microsoft.com/security/incident/sasser.asp#steps

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

Sasser.C is a variant of Sasser.B, with identical length. Main difference is that this version starts 1024 processes to scan for new vulnerable hosts, instead of 128 processes.

For more details, see the description of Sasser.B

Date Created: -

Date Last Modified: -