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Evil e-mail tricks PC users: 'Klez' disguises self with variety of subjects, senders
WorldNetDaily.com ^ | Thursday, April 25, 2002 | By Joe Kovacs

Posted on 04/24/2002 11:41:24 PM PDT by JohnHuang2

If you're seeing a sudden surge in the amount of e-mail in your inbox, chances are it has little do with your popularity.

Delete buttons on personal computers are getting a workout this week thanks to a tricky e-mail worm tunneling across America and the rest of the world.

Known as "Klez," the worm has been bombarding mailboxes with unsolicited messages, replicating itself and changing its own appearance by displaying a variety of subjects and senders.

"It's a worm that spreads really quickly," said Sharon Ruckman, senior director for anti-virus software maker Symantec's security response team. "And it carries an additional payload that can do some damage."

That additional payload is a virus known as "Elkern," which tries to infect other systems by sharing information. When combined with Klez, the two create problems that go beyond large amounts of incoming mail.

"It can release confidential information on your system which is never a good thing to have happen," Ruckman told WorldNetDaily. "It also has the ability to remove anti-virus software."

Klez is more deceptive than some previous problem e-mails, as it has a wide variety of titles displayed in the subject line, and can latch on to an e-mail address of someone a user knows and insert it in the "From" field, making users more apt to open it and thus get infected.

Some of the titles listed in infected mails include:

Klez also uses some combinations of random words in subject lines, to make it even more confusing. The random words include:

Some messages even appear to be trying to help PC users by offering a patch or removal tool for Klez or Elkern, but are nothing more than the worm itself.

"They're trying to get people to open it," Ruckman said regarding the virus writers' clever deception skills. She adds her company does not e-mail people randomly with removal tools.

Symantec has ranked Klez at a category 3 medium risk on a scale of 1 to 5, with 5 being the most dangerous.

"That means it's spreading in the wild more quickly, but it's not as serious as [other viruses like] Melissa or LoveBug," Ruckman said. She also says the Nimda virus which debuted last year is still problematic.

According to anti-virus software maker Trend Micro's world virus tracking center, Elkern and Klez are currently the top two ranked viruses. In the past 24 hours, they are estimated to have infected over 400,000 files globally.

Several strategies can be employed in preventing computers from being infected. Home PC users should avoid opening the messages and delete e-mails with attachments, especially if something appears strange in the subject or sender's line.

"Don't be curious about e-mail," Ruckman said. "Just delete it." Once deleted, users should also empty their trash bins.

She also recommends having anti-virus software on your machine, plus the "latest and greatest software patches," which can be downloaded from Microsoft.

Corporate e-mail users can have their system administrators attack the problem by filtering out certain attachments and subject lines at the gateway of their mail servers.

If a computer has been infected, free removal tools are available from both Symantec and Trend Micro.

But despite assurances from anti-virus companies, some organizations like ACT Teleconferencing in Hong Kong are having trouble curing the problem.

"Irrespective of what Symantec or other vendors say, there has been no way to stop this worm in the short term," Bob Deverell of ACT told the South China Morning Post this week.

"We have been struggling to clean our machines," he said. "We haven't been able to stop it and we're very competent."


TOPICS: Front Page News; News/Current Events; Technical
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To: AppyPappy
Great pointers.
21 posted on 04/25/2002 10:04:08 PM PDT by Registered
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To: TLBSHOW
it does work and kills old klez

Yup, it's what I used and ran it 4 times for good measure.

22 posted on 04/26/2002 4:23:33 AM PDT by Carolina
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To: Carolina
Bump to the end of Klez!
23 posted on 04/26/2002 5:42:28 AM PDT by TLBSHOW
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To: Liberty Belle
ping
24 posted on 04/26/2002 5:59:23 AM PDT by RichardsSweetRose
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To: JohnHuang2
I got one the other day, the subject line having something to do with PayPal. Inside were two attachments, one of them labeled as some sort of porno item. Fortunately, I was using PINE on a Mac and, so, was protected.
25 posted on 04/26/2002 6:06:28 AM PDT by aruanan
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To: Salvation
Mine did too, then I just emptied the Quarantine folder. It said the file was unrepairable, as well.
26 posted on 04/26/2002 6:11:32 AM PDT by a6intruder
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To: MarMema
I've said it before and I'll say it again. One of the best ways to protect yourselves from e-mail viruses is to access your mail via mail2web.com. Just go there and log in using your e-mail address and password. Most of the major ISP e-mails can be accessed from that site. Also you can access your e-mail from other computers. Any messages that I don't recognize, I delete and it never shows up in my Outlook Express.
27 posted on 04/26/2002 6:18:44 AM PDT by PJ-Comix
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To: JohnHuang2
Note to self: Don't use "so cool a flash,enjoy it" in the subject line in next e-mail to boss.
28 posted on 04/26/2002 6:20:46 AM PDT by Larry Lucido
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To: Larry Lucido
mail2web™ is an Internet based email client that allows you to pick up your email from almost any POP3 or IMAP4 email server. Instead of offering another web based email service like Hotmail© or Yahoo Mail©, mail2web lets you use your present present email account. You simply enter your email address and password to access your inbox. You can then read, reply and forward your messages. You can even delete large attachments without first downloading them!
29 posted on 04/26/2002 6:24:42 AM PDT by PJ-Comix
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To: AppyPappy
Click on the folder, click on View and click on Preview Pane to turn it off and on.

I don't have a 'preview' pane in 'view'

I'm using OE6.

wassup?

30 posted on 04/26/2002 6:32:25 AM PDT by JimVT
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To: JimVT
This is for Outlook. For OE, View, Layout, turn off Show Preview Pane
31 posted on 04/26/2002 6:38:19 AM PDT by AppyPappy
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To: diotima
This is what probably got your computer infected.
32 posted on 05/01/2002 9:20:22 AM PDT by anymouse
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To: anymouse; all
I thought so too. I scanned my computer with Norton Anti Virus and it found nothing. Then I downloaded Klez virus cleaner and it said it found nothing also. Hmm....any more suggestions?
33 posted on 05/01/2002 9:33:02 AM PDT by diotima
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To: diotima
The problem is that you downloaded this phoney virus checker 'Klez', which actually installed that virus.

Download the latest NAV virus definitions and then run NAV again. I bet if will show the 'Klez' virus is infecting your computer. Best to do a NAV scan from the emergency boot disk after the windows-based NAV scan just to make sure it really is completely gone. Otherwise follow the instructions in my FReepmail.

34 posted on 05/01/2002 9:55:14 AM PDT by anymouse
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To: anymouse
i ran a copy of KLEZ through a binary editor and extracted the following set of strings from it...if these are activated as windows commands, this little critter will do nasty things to an infected computer...


NoFileUrl


NoFolderOptions
NoChangeStartMenu


NoWindowsUpdate
NoSetActiveDesktop

NoForgetSoftwareUpdate

NoMSAppLogo5ChannelNotify


ForceCopyACLWithFile



NoResolveTrack

NoResolveSearch
NoEditingComponents
NoMovingBands


NoCloseDragDropBands



NoClosingComponents
NoDeletingComponents



NoAddingComponents

NoComponents



NoChangingWallPaper
NoHTMLWallPaper
ActiveDesktop


NoCustomizeWebView

ClassicShell



ClearRecentDocsOnExit


NoFavoritesMenu
NoActiveDesktopChanges

NoActiveDesktop
NoRecentDocsMenu



NoRecentDocsHistory
NoInternetIcon

NoSettingsWizards


NoLogoff



NoNetConnectDisconnect

NoViewContextMenu


NoTrayContextMenu


NoWebMenu


LinkResolveIgnoreLinkInfo


NoCommonGroups

EnforceShellExtensionSecurity


NoRealMode

WinOldApp


MyDocsOnNet
NoStartMenuSubFolders


NoAddPrinter



NoDeletePrinter
NoPrinterTabs


RestrictRun
NoStartBanner


NoNetHood


NoDriveTypeAutoRun

NoDriveAutoRun

NoDrives



NoFind

NoDesktop


NoSetTaskbar



NoSetFolders



NoFileMenu

NoSaveSettings

NoClose
NoRun


35 posted on 05/01/2002 11:54:49 AM PDT by atafak
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To: JohnHuang2
Virus creators are getting lazier by the day. If virus creators had any marbles, they would create viruses for Linux and Macs instead of Windows. I mean there is almost NO challenge in creating a virus for Windows, but Linux and Macs would be tougher to do.
36 posted on 05/01/2002 12:31:54 PM PDT by Paul C. Jesup
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To: atafak; diotima
Atafak, thanks for the confirmation of 'Klez' virus creation rather than deletion.

diotima, hopefully NAV can save most of your data and wipe this filth from your machine.

37 posted on 05/01/2002 2:37:36 PM PDT by anymouse
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To: Taxman
ping
38 posted on 05/02/2002 8:02:31 PM PDT by dixie sass
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To: diotima
Dio, Klez showed up in my computer Tuesday. I have had a time trying to get it out. It disquises itself extremely well. I tried everything that was suggested. This critter will kill any anti-virus program you have.

Also, it would not let me install any anti-virus programs. Ate them as soon as I tried install them. I was at the point that I was ready to find magnet and run it over the hard drive and then take it out and shoot it. Put it out of my misery. I have had a very short fuse for the last two days.

The only thing that has worked was the Symantec link above. It was in my registry. I can't access my email program. It is a very virulent nasty bug.

It has mess with a lot of stuff in my 'puter and I can't access several things right now, but the bug is gone (fingers crossed, knock on wood, and several thousand prayers), I hope for good.

39 posted on 05/02/2002 9:39:41 PM PDT by dixie sass
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To: dixie sass
Now I am getting ready to install Norton's 2002 and hopefully...
40 posted on 05/02/2002 9:41:29 PM PDT by dixie sass
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