Symantec Security Response - W32.HLLW.Fatee.B © 1995-2003 Symantec Corporation. All rights reserved. Legal Notices Privacy Policy W32.HLLW.Fatee.B Discovered on: September 26, 2003 Last Updated on: September 29, 2003 02:57:23 PM W32.HLLW.Fatee.B is a worm that spreads through file-sharing networks. It also tries to spread through the network shares. Variants: W32.HLLW.Fatee Type: Worm Infection Length: 94,208 bytes Systems Affected: Windows 2000, Windows 95, Windows 98, Windows Me, Windows NT, Windows Server 2003, Windows XP Systems Not Affected: DOS, Linux, Macintosh, OS/2, UNIX Virus Definitions (Intelligent Updater) * September 26, 2003 Virus Definitions (LiveUpdate™) ** October 01, 2003 *Intelligent Updater definitions are released daily, but require manual download and installation. Click here to download manually. **LiveUpdate virus definitions are usually released every Wednesday. Click here for instructions on using LiveUpdate. Wild: Number of infections: 0 - 49 Number of sites: 0 - 2 Geographical distribution: Low Threat containment: Easy Removal: Moderate Threat Metrics Wild: LowDamage: LowDistribution: Medium Distribution Shared drives: Attempts to spread through file-sharing networks such as KaZaA Lite, KaZaA, eMule, eDonkey2000, Overnet, Winmx, LimeWire, Morpheus, and Bearshare. When W32.HLLW.Fatee.B is executed, it does the following: Arrives on the computer as one of the following file names: LeeM&Pie.exe Hotmail Hacking.exe Kazaa User Hacking.exe Password Cracker.exe IP Finder.exe School FTP Cracker.exe MSBlast Source Code.exe Source Code Cracker.exe Hackers MSN.exe FTP Crack.exe Sub Seveven v88 (NO SERVER NEEDED).exe Kazaa 9.9 (No Messed Up Songs!!!).exe Project1.exe New Program.exe New Chat Program.exe Oliver.exe Displays the alert message: From Treck Man Lee Eats Pie, And by da way, get Some Protection. OLIVERS GAY... :) Munga Bunga Was ERE Adds the value: "MyApp"="" to the registry key: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run so that the worm is executed when Windows starts. Copies a file from the same folder as the running worm executable (which has a filename included in the list of step 1) to C:\Windows\System.Pif. Copies System.Pif as the following files: C:\Documents and Settings\All Users\Start Menu\Programs\Startup\Windows.pif C:\Windows\Start Menu\Programs\Startup\Windows.pif so that the worm starts when Windows starts. Attempts to copy System.Pif to computers on the same local area network whose IP is 192.168.1.%number%, where %number% is a variable, ranging (not limited to) from 1 to 55. The location to which the worm copies itself on these remote computers are: C:\Documents and Settings\All Users\Start Menu\Programs\Startup\Windows.pif C:\Windows\Start Menu\Programs\Startup\Windows.pif Copies itself to the following locations as the files listed in step 1, if the folders exist: C:\Program Files\kazaa\my shared folder\LeeM&Pie.exe C:\Program Files\kazaa\my shared folder\Hotmail Hacking.exe C:\Program Files\kazaa\my shared folder\Kazaa User Hacking.exe C:\Program Files\kazaa\my shared folder\Password Cracker.exe C:\Program Files\kazaa\my shared folder\IP Finder.exe C:\Program Files\kazaa\my shared folder\School FTP Cracker.exe C:\Program Files\kazaa\my shared folder\MSBlast Source Code.exe C:\Program Files\kazaa\my shared folder\Source Code Cracker.exe C:\program files\ICQ\Shared Folder\LeeM&Pie.exe C:\Program Files\kazaa\my shared folder\FTP Crack.exe C:\Program Files\kazaa\my shared folder\Sub Seveven v88 (NO SERVER NEEDED).exe C:\Program Files\kazaa\my shared folder\Kazaa 9.9 (No Messed Up Songs!!!).exe C:\Program Files\kazaa\my shared folder\IP Nuker (Works on All Windows OS up to XP).exe C:\Program Files\kazaa lite\my shared folder\LeeM&Pie.exe C:\Program Files\kazaa lite\my shared folder\Hotmail Hacking.exe C:\Program Files\kazaa lite\my shared folder\Kazaa User Hacking.exe C:\Program Files\kazaa lite\my shared folder\Password Cracker.exe C:\Program Files\kazaa lite\my shared folder\IP Finder.exe C:\My Downloads\School FTP Cracker.exe C:\Program Files\kazaa lite\my shared folder\School FTP Cracker.exe C:\Program Files\kazaa lite\my shared folder\MSBlast Source Code.exe C:\Program Files\kazaa lite\my shared folder\Source Code Cracker.exe C:\Program Files\kazaa lite\my shared folder\FTP Crack.exe C:\Program Files\kazaa lite\my shared folder\Sub Seveven v88 (NO SERVER NEEDED).exe C:\Program Files\kazaa lite\my shared folder\Kazaa 9.9 (No Messed Up Songs!!!).exe C:\Program Files\kazaa lite\my shared folder\IP Nuker (Works on All Windows OS up to XP).exe C:\Program Files\Kazaa Lite K++\my shared folder\LeeM&Pie.exe C:\Program Files\Kazaa Lite K++\my shared folder\Hotmail Hacking.exe C:\Program Files\Kazaa Lite K++\my shared folder\Kazaa User Hacking.exe C:\Program Files\Kazaa Lite K++\my shared folder\Password Cracker.exe C:\Program Files\Kazaa Lite K++\my shared folder\IP Finder.exe C:\Program Files\Kazaa Lite K++\my shared folder\School FTP Cracker.exe C:\Program Files\Kazaa Lite K++\my shared folder\MSBlast Source Code.exe C:\Program Files\Kazaa Lite K++\my shared folder\Source Code Cracker.exe C:\Program Files\Kazaa Lite K++\my shared folder\FTP Crack.exe C:\Program Files\Kazaa Lite K++\my shared folder\Sub Seveven v88 (NO SERVER NEEDED).exe C:\Program Files\Kazaa Lite K++\my shared folder\Kazaa 9.9 (No Messed Up Songs!!!).exe C:\Program Files\Kazaa Lite K++\my shared folder\IP Nuker (Works on All Windows OS up to XP).exe C:\Program Files\grokster\my grokster\LeeM&Pie.exe C:\Program Files\grokster\my grokster\Hotmail Hacking.exe C:\Program Files\grokster\my grokster\Kazaa User Hacking.exe C:\Program Files\grokster\my grokster\Password Cracker.exe C:\Program Files\grokster\my grokster\IP Finder.exe C:\Program Files\grokster\my grokster\School FTP Cracker.exe C:\Program Files\grokster\my grokster\MSBlast Source Code.exe C:\Program Files\grokster\my grokster\Source Code Cracker.exe C:\Program Files\grokster\my grokster\FTP Crack.exe C:\Program Files\bearshare\shared\LeeM&Pie.exe C:\Program Files\grokster\my grokster\Sub Seveven v88 (NO SERVER NEEDED).exe C:\Program Files\grokster\my grokster\Kazaa 9.9 (No Messed Up Songs!!!).exe C:\Program Files\grokster\my grokster\IP Nuker (Works on All Windows OS up to XP).exe C:\Program Files\bearshare\shared\Hotmail Hacking.exe C:\Program Files\bearshare\shared\Kazaa User Hacking.exe C:\Program Files\bearshare\shared\Password Cracker.exe C:\Program Files\bearshare\shared\IP Finder.exe C:\Program Files\bearshare\shared\School FTP Cracker.exe C:\Program Files\bearshare\shared\MSBlast Source Code.exe C:\Program Files\bearshare\shared\Source Code Cracker.exe C:\Program Files\bearshare\shared\FTP Crack.exe C:\Program Files\bearshare\shared\Sub Seveven v88 (NO SERVER NEEDED).exe C:\Program Files\bearshare\shared\Kazaa 9.9 (No Messed Up Songs!!!).exe C:\Program Files\bearshare\shared\IP Nuker (Works on All Windows OS up to XP).exe C:\Program Files\edonkey2000\incoming\LeeM&Pie.exe C:\Program Files\edonkey2000\incoming\Hotmail Hacking.exe C:\Program Files\edonkey2000\incoming\Kazaa User Hacking.exe C:\Program Files\edonkey2000\incoming\Password Cracker.exe C:\Program Files\edonkey2000\incoming\IP Finder.exe C:\Program Files\edonkey2000\incoming\School FTP Cracker.exe C:\Program Files\edonkey2000\incoming\MSBlast Source Code.exe C:\Program Files\edonkey2000\incoming\Source Code Cracker.exe C:\Program Files\edonkey2000\incoming\FTP Crack.exe C:\Program Files\edonkey2000\incoming\Sub Seveven v88 (NO SERVER NEEDED).exe C:\Program Files\edonkey2000\incoming\Kazaa 9.9 (No Messed Up Songs!!!).exe C:\Program Files\edonkey2000\incoming\IP Nuker (Works on All Windows OS up to XP).exe C:\Program Files\eMule\incoming\LeeM&Pie.exe C:\Program Files\eMule\incoming\Hotmail Hacking.exe C:\Program Files\eMule\incoming\Kazaa User Hacking.exe C:\Program Files\eMule\incoming\Password Cracker.exe C:\Program Files\eMule\incoming\IP Finder.exe C:\Program Files\eMule\incoming\School FTP Cracker.exe C:\Program Files\eMule\incoming\MSBlast Source Code.exe C:\Program Files\eMule\incoming\Source Code Cracker.exe C:\Program Files\eMule\incoming\FTP Crack.exe C:\Program Files\eMule\incoming\Sub Seveven v88 (NO SERVER NEEDED).exe C:\Program Files\morpheus\my shared folder\Hotmail Hacking.exe C:\Program Files\eMule\incoming\Kazaa 9.9 (No Messed Up Songs!!!).exe C:\Program Files\eMule\incoming\IP Nuker (Works on All Windows OS up to XP).exe C:\Program Files\morpheus\my shared folder\LeeM&Pie.exe C:\Program Files\morpheus\my shared folder\Kazaa User Hacking.exe C:\Program Files\morpheus\my shared folder\Password Cracker.exe C:\Program Files\morpheus\my shared folder\IP Finder.exe C:\Program Files\winmx\shared\Hotmail Hacking.exe C:\Program Files\morpheus\my shared folder\School FTP Cracker.exe C:\Program Files\morpheus\my shared folder\MSBlast Source Code.exe C:\Program Files\morpheus\my shared folder\Source Code Cracker.exe C:\Program Files\morpheus\my shared folder\FTP Crack.exe C:\Program Files\morpheus\my shared folder\Sub Seveven v88 (NO SERVER NEEDED).exe C:\Program Files\morpheus\my shared folder\Kazaa 9.9 (No Messed Up Songs!!!).exe C:\Program Files\morpheus\my shared folder\IP Nuker (Works on All Windows OS up to XP).exe C:\Program Files\limewire\shared\LeeM&Pie.exe C:\Program Files\limewire\shared\Hotmail Hacking.exe C:\Program Files\XoloX\Downloads\LeeM&Pie.exe C:\Program Files\limewire\shared\Kazaa User Hacking.exe C:\Program Files\limewire\shared\Password Cracker.exe C:\Program Files\limewire\shared\IP Finder.exe C:\Program Files\limewire\shared\School FTP Cracker.exe C:\Program Files\limewire\shared\MSBlast Source Code.exe C:\Program Files\limewire\shared\Source Code Cracker.exe C:\Program Files\limewire\shared\FTP Crack.exe C:\Program Files\limewire\shared\Sub Seveven v88 (NO SERVER NEEDED).exe C:\Program Files\limewire\shared\Kazaa 9.9 (No Messed Up Songs!!!).exe C:\Program Files\limewire\shared\IP Nuker (Works on All Windows OS up to XP).exe C:\Program Files\winmx\shared\LeeM&Pie.exe C:\Program Files\Tesla\Files\LeeM&Pie.exe C:\Program Files\winmx\shared\Kazaa User Hacking.exe C:\Program Files\winmx\shared\Password Cracker.exe C:\Program Files\winmx\shared\IP Finder.exe C:\Program Files\winmx\shared\School FTP Cracker.exe C:\Program Files\winmx\shared\MSBlast Source Code.exe C:\Program Files\winmx\shared\Source Code Cracker.exe C:\Program Files\winmx\shared\FTP Crack.exe C:\Program Files\winmx\shared\Sub Seveven v88 (NO SERVER NEEDED).exe C:\Program Files\winmx\shared\Kazaa 9.9 (No Messed Up Songs!!!).exe so the worm can spread through file-sharing networks, such as KaZaA Lite, KaZaA, eMule, eDonkey2000, Overnet, Winmx, LimeWire, Morpheus, Bearshare or any file-sharing program that uses these folders. Symantec Security Response encourages all users and administrators to adhere to the following basic security "best practices": Turn off and remove unneeded services. By default, many operating systems install auxiliary services that are not critical, such as an FTP server, telnet, and a Web server. These services are avenues of attack. If they are removed, blended threats have less avenues of attack and you have fewer services to maintain through patch updates. If a blended threat exploits one or more network services, disable, or block access to, those services until a patch is applied. Always keep your patch levels up-to-date, especially on computers that host public services and are accessible through the firewall, such as HTTP, FTP, mail, and DNS services. Enforce a password policy. Complex passwords make it difficult to crack password files on compromised computers. This helps to prevent or limit damage when a computer is compromised. Configure your email server to block or remove email that contains file attachments that are commonly used to spread viruses, such as .vbs, .bat, .exe, .pif and .scr files. Isolate infected computers quickly to prevent further compromising your organization. Perform a forensic analysis and restore the computers using trusted media. Train employees not to open attachments unless they are expecting them. Also, do not execute software that is downloaded from the Internet unless it has been scanned for viruses. Simply visiting a compromised Web site can cause infection if certain browser vulnerabilities are not patched. The following instructions pertain to all current and recent Symantec antivirus products, including the Symantec AntiVirus and Norton AntiVirus product lines. Disable System Restore (Windows Me/XP). Update the virus definitions. Restart the computer in Safe mode or VGA mode. Run a full system scan and delete all the files detected as W32.HLLW.Fatee.B. Reverse the changes that the Trojan made to the registry. For details on each of these steps, read the following instructions. 1. Disabling System Restore (Windows Me/XP) If you are running Windows Me or Windows XP, we recommend that you temporarily turn off System Restore. Windows Me/XP uses this feature, which is enabled by default, to restore the files on your computer in case they become damaged. If a virus, worm, or Trojan infects a computer, System Restore may back up the virus, worm, or Trojan on the computer. Windows prevents outside programs, including antivirus programs, from modifying System Restore. Therefore, antivirus programs or tools cannot remove threats in the System Restore folder. As a result, System Restore has the potential of restoring an infected file on your computer, even after you have cleaned the infected files from all the other locations. Also, a virus scan may detect a threat in the System Restore folder even though you have removed the threat. For instructions on how to turn off System Restore, read your Windows documentation, or one of the following articles: "How to disable or enable Windows Me System Restore" "How to turn off or turn on Windows XP System Restore" For additional information, and an alternative to disabling Windows Me System Restore, see the Microsoft Knowledge Base article, "Antivirus Tools Cannot Clean Infected Files in the _Restore Folder," Article ID: Q263455. 2. 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. 3. Restarting the computer in Safe mode or VGA mode Shut down the computer and turn off the power. Wait for at least 30 seconds, and then restart the computer in Safe mode or VGA mode. For Windows 95, 98, Me, 2000, or XP users, restart the computer in Safe mode. For instructions, read the document, "How to start the computer in Safe Mode" For Windows NT 4 users, restart the computer in VGA mode. 4. Scanning for and deleting the infected files Start your Symantec antivirus program and make sure that it is configured to scan all the files. For Norton AntiVirus consumer products: Read the document, "How to configure Norton AntiVirus to scan all files." For Symantec AntiVirus Enterprise products: Read the document, "How to verify that a Symantec Corporate antivirus product is set to scan all files." Run a full system scan. If any files are detected as infected with W32.HLLW.Fatee.B, click Delete. 5. Reversing the changes made to the registry WARNING: Symantec strongly recommends that you back up the registry before making any changes to it. Incorrect changes to the registry can result in permanent data loss or corrupted files. Modify the specified keys only. Read the document, "How to make a backup of the Windows registry," for instructions. Click Start, and then click Run. (The Run dialog box appears.) Type regedit Then click OK. (The Registry Editor opens.) Navigate to the key: HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Run In the right pane, delete the value: "MyApp"= Exit the Registry Editor. Write-up by: Tony Lee