Virus encyclopedia

Displaying Results for threatBackDoor.Generic3.GBB!CME-762

This worm spreads by internet exploiting MS Windows Server Service vulnerability described in MS Security Bulletin MS06-040.
Installation:
When the worm is launched it copies itself as wgavm.exe to Windows System Directory and registers itself under name Windows Genuine Advantage Validation Monitor as service with automatic startup type in HKLM\SYSTEM\ControlSet001\Services\wgavm key in Windows Registry.
Worm also changes value in entry "EnableDCOM" to "n" in HKLM\software\microsoft\ole key in Windows Registry which disables DCOM protocol.
In case of WinXP and Win2003 Server worm changes automatic startup type of Windows Firewall/Internet Connection Sharing (ICS) service in HKLM\SYSTEM\CurrentControlSet\Services\SharedAccess key to manual startup which disables Windows Firewall.
Spreading: internetWorm stores its copyes in shared folders, searches IP addresses and when it finds a vulnerable computer it uses the exploit for downloading a copy of itself and its launching

Virus Encyclopedia

Displaying Results for threatWin32/Mabezat.A

Names,aliases:
Win32/Mabezat.B(eTrust-Vet), Worm.Win32.Mabezat.b (F-Secure), Worm.Win32.Mabezat.b (Ikarus), Worm.Win32.Mabezat.b (Kaspersky), W32/Mabezat.a (McAfee), Win32/Mabezat.A (NOD32v2), Win32.Malware.gen!92 (Webwasher-Gateway)
Behavior:
Polymorphic parasitic file infector of executable files, use removable media and shared folders in LAN to propagate itself.
Description:
Once executed, the worm drops the following files in the folder %DriveLetter%\Documents and Settings:
tazebama.dll (32,768 bytes)tazebama.dl_ (154,751 bytes)hook.dl_ (154,751 bytes)
Modifies the following registry entry:
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced]"SuperHidden"=dword:00000000"Hidden"=dword:00000001
Enables drive autorun by removing entries:
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer]"NoDriveTypeAutoRun"
It may also copy itself to the %UserProfile%\Local Settings\Application Data\Microsoft\CD Burningfolder using the following filename:
zPharaoh.exe
Creates the following folder %DriveLetter%\Documents and Settings\%UserProfile%\Application Data\tazebamafor its own use.
If the current system date matches the condition: year greater or equal 2012, month greater or equal 10 and day greater or equal 16, files with the following extensions are encrypted:
*.TXT*.BAS*.C*.MDB*.ZIP*.RAR*.DOC*.XLS*.CPP*.H*.PAS*.ASP*.PHP*.PPT*.HTM*.RTF*.MDF*.PSD*.ASPX*.ASPX.CS*.HTML*.PDF*.HLPThe encryption consists simply of adding 0x10 to each byte of the file.
Executable files infection:
The virus searches for executables on local drives and on the network. Executables are infected by the overwriting instructions at the entry point. The original code is then stored at the end of file.
Propagation
Copies itself in root folders of drives using the following filename: zPharaoh.exeThe virus also creates the following file: autorun.inf
with the following content:
[AutoRun]ShellExecute=zPharaoh.exeshell\open\command=zPharaoh.exeshell\explore\command=zPharaoh.exeopen=zPharaoh.exe
This causes the virus to be executed each time the user opens the corresponding removable drive using Windows Explorer.
Removing:Remove infected files and restore them from backup.

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Removal Tools

Malicious Code has become increasingly complex and infections involve more system elements than ever before. Symantec Security Response has developed tools to automatically conduct what would often amount to extensive and tedious manual removal tasks. If your system has become infected, the tools listed below should aid you in repairing the damage. Symantec now offers a Spyware & Virus Removal service. Sit back and watch while a Symantec expert scans and clears your PC of spyware and viruses. This is a fee based service.

Removal tools..
01/11/07 Backdoor.Haxdoor.S/Trojan.Schoeberl.E Removal Tool
01/04/07 W32.Spybot.ANDM Removal Tool
11/29/06 W32.Spybot.ACYR Removal Tool
10/19/06 W32.Rajump Removal Tool
10/17/06 W32.Pasobir Removal Tool
10/04/06 Symantec Support Tool ActiveX Control Cleanup Tool
09/23/06 Trojan.Linkoptimizer Removal Tool
09/14/06 W32.Bacalid Removal Tool
03/23/06 W32.Antinny Removal Tool
03/23/06 Trojan.Abwiz Removal Tool
03/23/06 Trojan.Exponny Removal Tool
03/23/06 Trojan.Sientok Removal Tool
03/17/06 W32.Davs Removal Tool
02/02/06 W32.Kiman Removal Tool
01/17/06 W32.Blackmal@mm Removal Tool
12/02/05 W32.Secefa Removal Tool
11/10/05 Backdoor.Ryknos Removal Tool
11/03/05 Trojan.Lodear Removal Tool
PrettyPark.Worm Removal Tool
12/21/00 Happy99.Worm Removal Tool
12/21/00 W32.Navidad Fix
12/20/00 W32.Kriz Removal Tool
12/20/00 Kak.Worm.B Fix
12/20/00 W32.HLLW.QAZ.A Fix
12/19/00 BuddyList Removal Tool
12/15/00 W95.MTX Fix Tool

Keep your firewall turned on

What is a firewall?

A firewall helps protect your computer from hackers who might try to delete information, crash your computer, or even steal your passwords or credit card numbers. Make sure your firewall is always turned on.
Windows XP comes with Internet Connection Firewall, but you must turn it on to use it.
To turn on Internet Connection Firewall:
1. Point to Control Panel, double-click Network and Internet Connections, and then click Set up or change your home or small office network.
2. Follow the steps in the Network Setup Wizard to turn on the Internet Connection Firewall.
When you choose a configuration in the wizard that indicates that your computer is connected directly to the Internet, the Internet Connection Firewall is turned on.
Windows XP Service Pack 2 (SP2) and Windows Vista come with Windows Firewall automatically turned on. Visit Microsoft Update to download Windows XP SP2 for free. Visit the Windows Vista home page for more information about the newest operating system from Microsoft.

What are operating system updates?

High priority updates are critical to the security and reliability of your computer. They offer the latest protection against malicious online activities. Microsoft provides new updates, as necessary, on the second Tuesday of the month.

What is antivirus software?

Antivirus software is a computer program that detects, prevents, and takes action to disarm or remove malicious software programs, such as viruses and worms. You can help protect your computer against viruses by using antivirus software.
Computer viruses are software programs that are deliberately designed to interfere with computer operation, record, corrupt, or delete data, or spread themselves to other computers and throughout the Internet.
To help prevent the most current viruses, you must update your antivirus software regularly. You can set up most types of antivirus software to update automatically.
Here are two types of antivirus protection from Microsoft:
• For continuous protection, try Windows Live OneCare, which automatically scans your computer for viruses. You can use it free for 90 days. • For on-demand protection, Windows Live OneCare safety scanner allows you to visit a Web site and scan your computer for viruses and other malicious software for free using Windows Live OneCare safety scanner.

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Description of Norton AntiVirus

Norton AntiVirus blocks viruses and spyware with advanced protection. It helps protect your entire computer by stopping viruses, spyware, and other security risks. Norton AntiVirus works in the background so you can surf the Internet, read the news, play games, and download software or music without disruption. It also scans and cleans all email and instant messaging (IM) attachments, preventing you from receiving viruses, or spreading them to others. With set-it and forget-it functionality, Norton AntiVirus checks for updates continuously and automatically blocks new and emerging threats from getting on your system. In addition to protection updates, Norton AntiVirus provides new product features as available throughout your service subscription. Version 2008 improves performance.

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Antivirus

Antivirus software consists of computer programs that attempt to identify, thwart and eliminate computer viruses and other malicious software (malware).
Antivirus software typically uses two different techniques to accomplish this:
Examining (scanning) files to look for known viruses matching definitions in a virus dictionary
Identifying suspicious behavior from any computer program which might indicate infection. Such analysis may include data captures, port monitoring and other methods.
Most commercial antivirus software uses both of these approaches, with an emphasis on the virus dictionary approach.

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