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Net-Worm:W32/Sasser.D

Classification

Category: Malware

Type: -

Aliases: Sasser.D, W32/Sasser.D

Summary


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

Removal


Automatic action

Once detected, the F-Secure security product will automatically handle a harmful program or file by either deleting or renaming 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 "skynetave.exe" process, then delete the file 'skynetave.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

Knowledge Base

Find the latest advice in our Community Knowledge Base.

About the product

See the manual for your F-Secure 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.D is a variant of Sasser.C. This version starts 128 processes to scan for new vulnerable hosts and sends ICMP ECHO requests before attacking.

For more details, see the description of Sasser.B.