Fighting Spam

How prevalent is Spam?  According to Scott McAdams, OMA Public Affairs and Communications Department (www.oma.org):

“Studies show unsolicited or “junk” e-mail, known as spam, accounts for roughly half of all e-mail messages received. Although once regarded as little more than a nuisance, the prevalence of spam has increased to the point where many users have begun to express a general lack of confidence in the effectiveness of e-mail transmissions, and increased concern over the spread of computer viruses via unsolicited messages.”

In 2003, President Bush signed the  “Can Spam” bill, in December of 2003 which is the first national standards around bulk unsolicited commercial e-mail.  The bill, approved by the Senate by a vote of 97 to 0, prohibits senders of unsolicited commercial e-mail from using false return addresses to disguise their identity (spoofing) and the use of dictionaries to generate such mailers. In addition, it prohibits the use of misleading subject lines and requires that emails include and opt-out mechanism. The legislation also prohibits senders from harvesting addresses off Web sites. Violations constitute a misdemeanour crime subject to up to one year in jail. 

One major point that needs to be discussed about this: 

Spam is now coming from other countries in ever-greater numbers. These emails are harder to fight, because they come from outside our country’s laws and regulations.  Because the Internet opens borders and thinks globally, these laws are fine and good, but do not stop the problem.

So what do you do about this? 

Here are the top 5 Rules to do to protect from spam.

Number 1: 
Do what you can to avoid giving your email address out on
the net.  

There are products called “spam spiders” that search the Internet for email addresses to send email to.  If you are interested, do a search on “spam spider” and you will be amazed at what you get back.

Interestingly, there is a site, WebPoison.org, which is an open
source project geared to fight Internet “spambots” and “spam
spiders”, by giving them bogus HTML web pages, which contain bogus email addresses

A couple of suggestions for you: 

a) use form emails, which can hide addresses or also b) use addresses like sales@company.com instead of
your full address to help battle the problem. c) There are also
programs that encode your email, like jsGuard, which encodes your email address on web pages so that while spam spiders find it, it is difficult or impossible to read your email address.

Number 2: 
Get spam blocking software.  There are many programs out
there for this.  (go to www.cloudmark.com or www.mailwasher.net for example).  You may also buy a professional version.  Whatever you do, get the software. It will save you time.  The software is not foolproof, but they really do help.  You usually have to do some manual set up to block certain types of email.

Number 3:
Use the multiple email address approach.

There are a lot of free email addresses to be had.  If you must
subscribe to newsletters, then have a “back-up” email address. It would be like giving your cell phone number to your best friends and the business number to everyone else.

Number 4: 
Attachments from people you don’t know are BAD, BAD, BAD.

A common problem with spam is that they have attachments and attachments can have viruses.  Corporations often have filters that don’t let such things pass to you.  Personal email is far more “open country” for spammers. 

General rule of thumb:  if you do not know who is sending you something, DO NOT OPEN THE ATTACHMENT.  Secondly, look for services that offer filtering. Firewall vendors offer this type of service as well.

Number 5: 
Email services now have “bulk-mail” baskets.  If what you
use currently does not support this, think about moving to a new
vendor.  The concept is simple.  If you know someone, they can send you emails.  If you don’t know them, put them in the bulk email pile and then “choose” to allow them into your circle.  Spam Blocking software has this concept as well, but having extra layers seems critical these days, so it is worth looking into.

 Bob Matharoo has also written an interesting article on Spam,  check it out here

Computer Viruses that Come a Callin’

Every day new computer viruses are created to annoy us and to wreck havoc on our computer systems. Below are ten viruses currently cited as being the most prevalent in terms of being seen the most or in their ability to potentially cause damage. New viruses are created daily. This is by no means an all inclusive list. The best thing you can do is to remain vigilant, keep your anti-virus software updated, and stay aware of the current computer virus threats.

Virus: Trojan.Lodear
A Trojan horse that attempts to download remote files. It will
inject a .dll file into the EXPLORER.EXE process causing system
instability.

Virus: W32.Beagle.CO@mm
A mass-mailing worm that lowers security settings. It can delete
security-related registry sub keys and may block access to security-related websites.

Virus: Backdoor.Zagaban
A Trojan horse that allows the compromised computer to be used as a covert proxy and which may degrade network performance.

Virus: W32/Netsky-P
A mass-mailing worm which spreads by emailing itself to addresses produced from files on the local drives.

Virus: W32/Mytob-GH
A mass-mailing worm and IRC backdoor Trojan for the Windows
platform. Messages sent by this worm will have the subject chosen randomly from a list including titles such as: Notice of account limitation, Email Account Suspension, Security measures, Members Support, Important Notification.

Virus: W32/Mytob-EX
A mass-mailing worm and IRC backdoor Trojan similar in nature to W32-Mytob-GH. W32/Mytob-EX runs continuously in the background, providing a backdoor server which allows a remote intruder to gain access and control over the computer via IRC channels. This virus spreads by sending itself to email attachments harvested from your email addresses.

Virus: W32/Mytob-AS, Mytob-BE, Mytob-C, and Mytob-ER
This family of worm variations possesses similar characteristics in terms of what they can do. They are mass-mailing worms with backdoor functionality that can be controlled through the Internet Relay Chat (IRC) network. Additionally, they can spread through email and through various operating system vulnerabilities such as the LSASS (MS04-011).

Virus: Zafi-D
A mass mailing worm and a peer-to-peer worm which copies itself to the Windows system folder with the filename Norton Update.exe. It can then create a number of files in the Windows system folder with filenames consisting of 8 random characters and a DLL extension.

W32/Zafi-D copies itself to folders with names containing share,
upload, or music as ICQ 2005a new!.exe or winamp 5.7 ew!.exe.
W32/Zafi-D will also display a fake error message box with the
caption “CRC: 04F6Bh” and the text “Error in packed file!”.

Virus: W32/Netsky-D
A mass-mailing worm with IRC backdoor functionality which can also infect computers vulnerable to the LSASS (MS04-011) exploit.

Virus: W32/Zafi-B
A peer-to-peer (P2P) and email worm that will copy itself to the
Windows system folder as a randomly named EXE file. This worm will test for the presence of an internet connection by attempting to connect to www.google.com or  www.microsoft.com. A bilingual, worm with an attached Hungarian political text message box which translates to “We demand that the government accommodates the homeless, tightens up the penal code and VOTES FOR THE DEATH PENALTY to cut down the increasing crime. Jun. 2004, Pécs (SNAF Team)”

How many spyware items are infecting your computer?

I just had, by mistake, a plug-in called Intelligent Explorer attach to my browser. What a nightmare!  I have another article on this topic, but this brings home a point.  Spyware or adware items are continually infecting computers. Most computers have no protection from them. Most frightening is the frequency of them.  From the InfosecWriters web site, “According to a 2004 survey by America Online and the National Cyber Security Alliance, 91% of users questioned were familiar with the term spyware. Only 53% believed their computers were infected, but a scan found that 80% of their PCs had some type of spyware installed on them.”  It goes on to say, “…The average number of spyware components per computer was 93 with one computer having well over a thousand.”

What is Spyware?

Butte College  (www.bctv.butte.edu/support/spyware.html) offers this definition:

“The term ‘spyware’ is broadly defined as any program that gets into your computer without permission and hides in the background while it makes unwanted changes to your user experience.

Spyware is generally not designed to damage your computer. The damage it does is more a by-product of its main mission, which is to serve you targeted advertisements or make your browser display certain sites or search results.

At present, most spyware targets only the Windows operating system (Internet Explorer).”

To be fair, spyware can be harmless, for example tracking cookies don’t do much. While such things infringe on your privacy, they don’t really harm anything. Others, however, are extremely dangerous.

So what do you do about it?

No spyware program seems to do everything, but there are a lot of goods solutions out there that can help. Here is a list of some of
the top Spyware tools to look at:

1) Try Ad-Aware 6.0 Professional from LavaSoft (there is also a free version with less functionality)

2) Spybot Search & Destroy from PepiMK Software

3) Xoftspy form Pareto Logic

4) Spyware Guard from Javacool Software is a free program

5) Pest Patrol (now part of Computer Associates by acquisition)

One thing is for certain: you do need to take spyware seriously.
For some reason, too many people out there think anti-virus solutions are the end-all solution. They are not. 

And, when all else fails?

Finally, as drastic as it seems,  if your computer has been infected with a large number of spyware programs, the only solution you may have is backing up your data, and performing a complete reinstall of the operating system.

Why Do I Feel Like Somebody’s Watching Me?

Spyware is one of the fastest-growing internet threats.  According to the National Cyber Security Alliance, spyware infects more than 90% of all PCs today.  These unobtrusive, malicious programs are designed to silently bypass firewalls and anti-virus software without the user’s knowledge.  Once embedded in a computer, it can wreak havoc on the system’s performance while gathering your personal information.  Fortunately, unlike viruses and worms, spyware programs do not usually self-replicate. 

 

Where does it come from?

Typically, spyware originates in three ways.  The first and most common way is when the user installs it.  In this scenario, spyware is embedded, attached, or bundled with a freeware or shareware program without the user’s knowledge.  The user downloads the program to their computer.  Once downloaded, the spyware program goes to work collecting data for the spyware author’s personal use or to sell to a third-party.  Beware of many P2P file-sharing programs.  They are notorious for downloads that posses spyware programs.

The user of a downloadable program should pay extra attention to the accompanying licensing agreement.  Often the software publisher will warn the user that a spyware program will be installed along with the requested program.  Unfortunately, we do not always take the time to read the fine print.  Some agreements may provide special “opt-out” boxes that the user can click to stop the spyware from being included in the download.  Be sure to review the document before signing off on the download.

Another way that spyware can access your computer is by tricking you into manipulating the security features designed to prevent any unwanted installations.  The Internet Explorer Web browser was designed not to allow websites to start any unwanted downloads.  That is why the user has to initiate a download by clicking on a link.  These links can prove deceptive.  For example, a pop-up modeled after a standard Windows dialog box, may appear on your screen.  The message may ask you if you would like to optimize your internet access.  It provides yes or no answer buttons, but, no matter which button you push, a download containing the spyware program will commence. Newer versions of Internet Explorer are now making this spyware pathway a little more difficult.

Finally, some spyware applications infect a system by attacking security holes in the Web browser or other software.  When the user navigates a webpage controlled by a spyware author, the page contains code designed to attack the browser, and force the installation of the spyware program.

What can spyware programs do?

Spyware programs can accomplish a multitude of malicious tasks.  Some of their deeds are simply annoying for the user; others can become downright aggressive in nature.

Spyware can:

1.            Monitor your keystrokes for reporting purposes.

2.            Scan files located on your hard drive.

3.            Snoop through applications on our desktop.

4.            Install other spyware programs into your computer.

5.            Read your cookies.

6.            Steal credit card numbers, passwords, and other personal information.

7.            Change the default settings on your home page web browser.

8.            Mutate into a second generation of spyware thus making it more

         difficult to eradicate.

9.            Cause your computer to run slower.

10.        Deliver annoying pop up advertisements.

11.        Add advertising links to web pages for which the author does not get paid.  Instead, payment is directed to the spyware programmer that changed the original affiliate’s settings.

12.        Provide the user with no uninstall option and places itself in unexpected or hidden places within your computer making it difficult to remove.

Spyware Examples

Here are a few examples of commonly seen spyware programs.  Please note that while researchers will often give names to spyware programs, they may not match the names the spyware-writers use. 

CoolWebSearch, a group of programs, that install through “holes” found in Internet Explorer. These programs direct traffic to advertisements on Web sites including coolwebsearch.com. This spyware nuisance displays pop-up ads, rewrites search engine results, and alters the computer host file to direct the Domain Name System (DNS) to lookup preselected sites. 

Internet Optimizer (a/k/a DyFuCa), likes to redirect Internet Explorer error pages to advertisements. When the user follows the broken link or enters an erroneous URL, a page of advertisements pop up.

180 Solutions reports extensive information to advertisers about the Web sites which you visit.  It also alters HTTP requests for affiliate advertisements linked from a Web site.  Therefore the 180 Solutions Company makes an unearned profit off of the click through advertisements they’ve altered.

HuntBar (a/k/a WinTools) or Adware.Websearch, is distributed by Traffic Syndicate and is installed by ActiveX drive-by downloading at affiliate websites or by advertisements displayed by other spyware programs.  It’s a prime example of how spyware can install more spyware.   These programs will add toolbars to Internet Explorer, track Web browsing behavior, and display advertisements.

How can I prevent spyware?

There are a couple things you can do to prevent spyware from infecting your computer system.  First, invest in a reliable commercial anti-spyware program.

I recommend you follow this link  http://www.linkbrander.com/go/34613 and read more and you can also scan your PC for free. There are several others on the market including stand alone software packages such as Lavasoft’s Ad-Aware available for free at http://www.lavasoft.de/products/ad-aware_se_personal.php or Windows Antispyware.  Other options provide the anti-spyware software as part of an anti-virus package.  This type of option is offered by companies such as Sophos, Symantec, and McAfee. Anti-spyware programs can combat spyware by providing real-time protection, scanning, and removal of any found spyware software.   As with most programs, update your anti virus software frequently. 

As discussed, the Internet Explorer (IE) is often a contributor to the spyware problem because spyware programs like to attach themselves to its functionality.  Spyware enjoys penetrating the IE’s weaknesses.  Because of this, many users have switched to non-IE browsers.  However, if you prefer to stick with Internet Explorer, be sure to update the security patches regularly, and only download programs from reputable sources.  This will help reduce your chances of a spyware infiltration.

 

And, when all else fails?

Finally, if your computer has been infected with a large number of spyware programs, the only solution you may have is backing up your data, and performing a complete reinstall of the operating system.

Beware Internet Explorer Plug-Ins

Just what is Intelligent Explorer? For your safety, you really need to know  

I recently hit, by mistake, what I thought was an Explorer upgrade option.  It turned out to be a pop-up appearing legitimate but really was not. It uploaded a product called Intelligent Explorer on my machine.  What a nightmare!  

I did some research on the web and found messages like this one from a BullGuard Antivirus Forum,  “PLEASE HELP!!!  I HAVE A SPYWARE, TROJAN AND HIJACKER ON MY COMPUTER.  I HAVE RUN BULLGUARD, CWSHREDDER AND AD-AWARE.  ALL HAVE PICKED UP THE VIRUSES AND SAID THAT THEY HAVE BEEN MOVED/REMOVED BUT WHEN I LOG ONTO THE INTERNET THAT DAMN INTELLIGENT EXPLORER TOOLBAR IS SHOWING” 

Another message from spyware info Forum goes something like this: “Hey I’m having issues with something called Internet explorer toolbar - Intelligent explorer. I can’t find a way to remove it from my comp and I really don’t want to reinstall windows. I’ve used spybot, ad-ware, and cw shredder but nothing seems to work.” It appears that Intelligent Explorer allows other software to be downloaded to your machine and this is where the problem occurs. What is even more remarkable is that by downloading Intelligent Explorer, their license grants them the right to install software add-ins on your computer at their will.  Take a look at what the software license for Intelligent Explore says (go to http://www.ieplugin.com/terms.html to read it all): “You grant to us the right, exercisable by us until you uninstall the Software or this agreement is otherwise terminated, to provide to you the Service of downloading and causing to be displayed advertising material on your computer, through ‘pop-up’ or other display while you use your browser.  You acknowledge and agree that installation of the Software may automatically modify toolbars and other settings of your browser.  By installing the Software you agree to such modifications.” 

The company, IBC incorporated, is incorporated in Belize.  I really can’t believe this license!  

One end user found highly objectionable pop-up advertisements generated by this software bundled with Intelligent Explorer in the form of extreme pornography.  

I have yet to break this.  

Intelligent Explorer is a plug-in, which can create a new home page, as well as start up and endless loop of pop-ups. You can remove the view bar, but then starting up Internet Explorer will cause it to reappear.  I asked some friends to help, and no one could tell me what to do. 

This is what I did: 

I bought a copy of a program called XoftSpy and it removed the software. It took two scans and a reboot to do it.  They advertised it was free, which it was to run, but then I had to buy it to actually fix anything. It was a great purchase, although I am in favour of programs that are freeware such as  Spybot, NoAdware, Spyware Eliminator, and there are many other freeware products out there as well, but that is what ended the nightmare for me.

 http://www.linkbrander.com/go/34613