Linux.Slapper.Worm - Removal

Risk Level 2: Low

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Discovered: September 13, 2002
Updated: February 13, 2007 11:53:31 AM
Also Known As: Apache/mod_ssl Worm, Linux/Slapper-A [Sophos], ELF_SLAPPER.A [Trend], Linux.Slapper.Worm [CA], Linux/Slapper.worm.a [McAfee], Worm.Linux.Slapper [AVP], Linux/Slapper [Panda]
Type: Worm
Systems Affected: Linux
CVE References: CAN-2002-0656


Although Linux.Slapper.Worm can only infect Linux systems, worm could be found on a Windows-based system. Follow the instructions for your operating system.


Linux
Run a full system scan using the ICAP Savcls.exe scanner that is included with Symantec Scan Engine 4.06 or later, and delete any files detected as Linux.Slapper.Worm.


Windows
The following instructions pertain to all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines, when run on Windows.
  1. Update the virus definitions.
  2. Run a full system scan and delete all the files detected as Linux.Slapper.Worm.

For specific details on each of these steps, read the following instructions.

1. Updating the virus definitions
Symantec Security Response fully tests all the virus definitions for quality assurance before they are posted to our servers. There are two ways to obtain the most recent virus definitions:
  • Running LiveUpdate, which is the easiest way to obtain virus definitions: These virus definitions are posted to the LiveUpdate servers once each week (usually on Wednesdays), unless there is a major virus outbreak. To determine whether definitions for this threat are available by LiveUpdate, refer to the Virus Definitions (LiveUpdate).
  • Downloading the definitions using the Intelligent Updater: The Intelligent Updater virus definitions are posted on U.S. business days (Monday through Friday). You should download the definitions from the Symantec Security Response Web site and manually install them. To determine whether definitions for this threat are available by the Intelligent Updater, refer to the Virus Definitions (Intelligent Updater).

    The Intelligent Updater virus definitions are available: Read "How to update virus definition files using the Intelligent Updater" for detailed instructions.

2. Scanning for and deleting the infected files
  1. Start your Symantec antivirus program and make sure that it is configured to scan all the files.
  2. Run a full system scan.
  3. If any files are detected as infected with Linux.Slapper.Worm, click Delete.


Writeup By: Peter Szor
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