If there are no more problems or signs of infection, you should Create a New Restore Point to prevent possible reinfection from an old one
. Some of the malware you picked up could have been saved in System Restore. Since this is a protected directory your tools cannot access to delete these files, they sometimes can reinfect your system if you accidentally use an old restore point. Setting a new restore point AFTER cleaning your system will help prevent this and enable your computer to "roll-back
" to a clean working state.The easiest and safest way to do this is
- Go to Start > Programs > Accessories > System Tools and click "System Restore".
- Choose the radio button marked "Create a Restore Point" on the first screen then click "Next". Give the R.P. a name, then click "Create". The new point will be stamped with the current date and time. Keep a log of this so you can find it easily should you need to use System Restore.
- Then use Disk Cleanup to remove all but the most recently created Restore Point.
- Go to Start > Run and type: Cleanmgr
- Click "Ok".
- Click the "More Options" Tab.
- Click "Clean Up" in the System Restore section to remove all previous restore points except the newly created one.
is a Trojan
that infects a system with malicious Browser Helper Objects
and .dll files attached to Winlogon and Explorer.exe. The infection is responsible for launching unwanted pop ups, advertising for rogue antispyware programs, and downloading more malicious files which hampers system performance. Newer variants of Vundo typically use bogus warning messages to indicate that your computer is infected with spyware or has critical errors
as a scare tactic to goad you into downloading a rogue security application
like WinFixer, WinAntiVirus Pro, ErrorSafe, SystemDoctor, WinAntiSpyware, WinAntiSpy, WinReanimator and others to fix it. The messages can mimic system messages so they appear as if they are generated by the Windows Operating System.
Vundo spreads via Internet Relay Chat (IRC) and peer-to-peer networks, through emails containing links to websites that exploit your web browser’s security holes and by exploiting a vulnerability in older versions of Sun Java
. When you click on a link in a Vundo-laced email, Internet Explorer launches a site that stealthy installs the Trojan so that it can run every time you startup Windows.
MyWebSearch and MyWay are Internet Explorer toolbars often bundled with "free software" offered by third party software vendors. Some anti-virus and security programs detect/remove the toolbar and related files as Adware or a malware threat. You can read more about it here
. MyWebSearch and MyWay were pre-installed on new Dell computers
starting in November 2004. Read here
Dell had a link to "What is the Dell MyWay Home Page?
" but it is now redirected to this page
which has a link to The "Dell My Way" Home Page
. Dell now uses the "Dell Search Assistant
" where they address many of the same concerns previously addressed in the redirected link.
Flash (usb, pen, thumb, jump) drive infections usually involve malware that loads an autorun.inf
file into the root folder of all drives (internal, external, removable). When the removable media is inserted, autorun looks for autorun.inf and automatically executes another malicious file to run on your computer. When a flash drive becomes infected, the Trojan will infect a system when the removable media is inserted if autorun has not been disabled.
" is the feature built into Windows that automatically
runs a program specified by an "autorun.inf
" file whenever a CD-ROM, DVD or USB drive is plugged into a Windows-based computer. Autorun is intended as a convenience to automatically start an installer when removable media is inserted into the computer.
Keeping Autorun enabled on USB and other removable drives has become a significant security risk
due to the increasing number of malware variants that can infect them and transfer the infection to your computer. Read Danger USB! Worm targets removable memory sticks
You can hold down the Shift
key when inserting the drive into your computer until Windows detects it to keep autorun.inf
from executing automatically. However, I recommend disabling the Autorun feature
feature on USB and removable drives as a method of prevention. This should keep the malicious file from automatically running upon insertion and infecting your system while allowing you to safely perform a scan.
The easiest way to disable Autorun on a specific drive is to download and use Tweak UI PowerToy
- After installation, launch Tweak UI, double-click on My Computer in the tree menu on the left, then click on AutoPlay > Drives. This will allow you to change the system settings for AutoPlay/autorun.
- Uncheck the drives you want to disable AutoPlay on and click on Apply.
- Next, click on the Types in the left tree. This allows you to control whether Autoplay is enabled for CD and DVD drives and removable drives. You may need to restart Tweak UI if it closes after step 2.
- Uncheck the box to disable Autoplay for a particular type of drive.
- Click Apply.
If needed, see Disable Autorun/AutoPlay in XP with Tweak UI
" for instructions with screenshots.Note: When Autorun is disabled, double-clicking a drive which has autorun.inf in its root directory may still activate Autorun so be careful. Disabling autorun/autoplay does not prevent you from accessing those media sources. They are still available by opening My Computer and accessing the source drive (cd, dvd, usb/flash drive or external hard drive).
Always scan USB Flash Drives after they have been used in other computer systems, even your own. An easy way to do this is to download "ClamWin Portable Antivirus
", put it on your USB Flash Drive, update its definition files and perform a scan.