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Known threats:11,676,724 Last Update:April 23, 18:12

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Win32.SDBot!Backdoor!Server.Vari

Aliases of Win32.SDBot!Backdoor!Server.Vari (AKA):

[Kaspersky]Backdoor.SdBot.gen, packed: UPX
[McAfee]IRC-Sdbot
[F-Prot]security risk or a "backdoor" program
[Panda]Bck/IRC.SdBot, Bck/Sdbot.gen, Bck/Sdbot.GY

How to Remove Win32.SDBot!Backdoor!Server.Vari from Your Computer^

You can effectively remove Win32.SDBot!Backdoor!Server.Vari from your computer with Exterminate It!.

After installing the program, run a scan to display a list of the files associated with Win32.SDBot!Backdoor!Server.Vari in the Scan Result screen and remove these files. For information about running scans and removing malware files, see the Exterminate It! Help.

Worm

Worms are generally considered to be a subset of viruses, but have key differences. Unlike a virus, a worm is a computer program that replicates, but does not infect other files. Instead, a worm installs itself on a computer and then looks for a way to spread to other computers.

From a user’s perspective, there are noticeable differences. The longer a virus goes undetected, the more files it will infect on the victim computer. By contrast, there is just a single instance of the worm code on the computer.

Like viruses, worms are often subdivided according to the methods they use to infect a system. E-mail worms are distributed as attachments to e-mail messages. IM worms are attached to messages sent with instant messaging programs (such as IRC or ICQ). P2P (peer-to-peer) worms use file-sharing networks to spread. Network worms spread directly over the LAN (Local Area Network) or across the Internet, often exploiting a specific vulnerability.

Be Aware of the Following Worm Threats:

IRC.SdBot.ATH, Sdbot.S, Win32.AZV, BackDoor, JScript.CodeBase.

Backdoor

Of all trojans, backdoor trojans pose the greatest danger to users’ PCs because they give their authors remote control over infected computers. They are downloaded, installed, and run silently, without the user’s consent or knowledge. Upon installation, backdoor trojans can be instructed to send, receive, execute and delete files, gather and transfer confidential data from the computer, log all activity on the computer, and perform other harmful activities.

How Did My PC Get Infected with Win32.SDBot!Backdoor!Server.Vari?^

The following are the most likely reasons why your computer got infected with Win32.SDBot!Backdoor!Server.Vari:

  • Your operating system and Web browser's security settings are too lax.
  • You are not following safe Internet surfing and PC practices.

Downloading and Installing Freeware or Shareware

Small-charge or free software applications may come bundled with spyware, adware, or programs like Win32.SDBot!Backdoor!Server.Vari. Sometimes adware is attached to free software to enable the developers to cover the overhead involved in created the software. Spyware frequently piggybacks on free software into your computer to damage it and steal valuable private information.

Using Peer-to-Peer Software

The use of peer-to-peer (P2P) programs or other applications using a shared network exposes your system to the risk of unwittingly downloading infected files, including malicious programs like Win32.SDBot!Backdoor!Server.Vari.

Visiting Questionable Web Sites

When you visit sites with dubious or objectionable content, trojans-including Win32.SDBot!Backdoor!Server.Vari, spyware and adware, may well be automatically downloaded and installed onto your computer.

Detecting Win32.SDBot!Backdoor!Server.Vari^

The following symptoms signal that your computer is very likely to be infected with Win32.SDBot!Backdoor!Server.Vari:

PC is working very slowly

Win32.SDBot!Backdoor!Server.Vari can seriously slow down your computer. If your PC takes a lot longer than normal to restart or your Internet connection is extremely slow, your computer may well be infected with Win32.SDBot!Backdoor!Server.Vari.

New desktop shortcuts have appeared or the home page has changed

Win32.SDBot!Backdoor!Server.Vari can tamper with your Internet settings or redirect your default home page to unwanted web sites. Win32.SDBot!Backdoor!Server.Vari may even add new shortcuts to your PC desktop.

Annoying popups keep appearing on your PC

Win32.SDBot!Backdoor!Server.Vari may swamp your computer with pestering popup ads, even when you're not connected to the Internet, while secretly tracking your browsing habits and gathering your personal information.

E-mails that you didn't write are being sent from your mailbox

Win32.SDBot!Backdoor!Server.Vari may gain complete control of your mailbox to generate and send e-mail with virus attachments, e-mail hoaxes, spam and other types of unsolicited e-mail to other people.