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CodeScript Moderator Team

Joined: 08 Jun 2003 Posts: 1060 Location: India
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Posted: Tue Aug 12, 2003 5:05 am Post subject: VDS user is shutting down your system |
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VDS user is shutting down your system ???
I was connected to internet by a dialup 15 minutes back.
Suddenly a dialog appeared that an RPC call has initiated system shutdown and a countdown of 30 sec started advising me to save all the work. I had a lot of unsaved documents and luckily I could abort this call just in time. I am sure someone has done this with a malicious intention ( I haven't setup a firewall )
What irritated me most was the message in the dialog (see heading)
If the person is a member of this forum I stongly advice him/her not to do this again. _________________ Regards
- CodeScript
Give your application a professional look with the VDSGUI Extension |
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PGWARE Web Host

Joined: 29 Dec 2001 Posts: 1566
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CodeScript Moderator Team

Joined: 08 Jun 2003 Posts: 1060 Location: India
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Posted: Tue Aug 12, 2003 7:03 am Post subject: |
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I think you are right prakash.
I already tried several tools/manual options but could not detect W32.Blaster.Worm
This looks like a mutant of the worm and security patch has not helped either. I have already reported it to symantec. I only hope to have a better luck. My computer is going down like anything I am losing folders from desktop. May IE finctionalities gone I cannot insert emoticons here by clicking. BEWARE EVERYBODY GET THE UPDATE BEFORE THIS WORM STRIKES.
As for the message I think it(virus/worm) takes first 3 letters from a random folder in the temp directory :
E.g. I recieved "New user is shutting down your system"
New likely comes from a folder named "New England Journal of Medicine"
So nothing to do with a "VDS user" I think. Sorry if I have hurt someone  _________________ Regards
- CodeScript
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Dr. Dread Professional Member


Joined: 03 Aug 2001 Posts: 1065 Location: Copenhagen, Denmark
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Posted: Tue Aug 12, 2003 7:22 am Post subject: |
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Surely you haven't hurt anyone, I should think. When things like this happen, one will always
get frustrated
But really, if you're connected to the Internet often and you don't wanna jeopardize confidential data
or have unknown processes using your ports then you should consider setting up a firewall. My own
firewall reports port scans etc. almost every day...
Greetz
Dread _________________ ~~ Alcohol and calculus don't mix... Don't drink and derive! ~~
String.DLL * advanced string processing |
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Dr. Dread Professional Member


Joined: 03 Aug 2001 Posts: 1065 Location: Copenhagen, Denmark
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Posted: Tue Aug 12, 2003 10:20 am Post subject: |
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BTW, another thing sprung to mind. A good site for testing your pc's online security is grc.com where
you'll find the ShieldsUp testing page. This should be the direct link:
https://grc.com/x/ne.dll?bh0bkyd2
On the main page of the site https://grc.com/default.htm, you'll find other tools to plug up some holes.
Everyone should do themselves the favor of checking this site out to ascertain whether their
computer is perhaps vulnerable.
Greetz
Dr. Dread _________________ ~~ Alcohol and calculus don't mix... Don't drink and derive! ~~
String.DLL * advanced string processing |
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FreezingFire Admin Team

Joined: 23 Jun 2002 Posts: 3508
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Posted: Tue Aug 12, 2003 1:32 pm Post subject: |
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Well if you look at http://grc.com/default.htm is talks exactly what to do
about this new exploitation. _________________ FreezingFire
VDSWORLD.com
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FreezingFire Admin Team

Joined: 23 Jun 2002 Posts: 3508
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Posted: Tue Aug 12, 2003 2:04 pm Post subject: |
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You can visit: https://grc.com/x/portprobe=135
To test for the open port used for the exploit. I think that should maybe
help. _________________ FreezingFire
VDSWORLD.com
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CodeScript Moderator Team

Joined: 08 Jun 2003 Posts: 1060 Location: India
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Posted: Tue Aug 12, 2003 4:28 pm Post subject: |
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Thanks everybody for the help. Finally I think I have been able to overcome this worm.  _________________ Regards
- CodeScript
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Tommy Admin Team
Joined: 16 Nov 2002 Posts: 746 Location: The Netherlands
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Posted: Wed Aug 13, 2003 1:25 am Post subject: |
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I'm not sure how much you know about network configuration, but if you can, make
sure that "Client for Microsoft Networks" and "File and Printer Sharing for Microsoft
Networks" are not bound/enabled for your dial-up connection. If you have no home
network besides the dial up, you may remove them altogether.
Also to prevent this particular incident from happening again, you should be able to
set a system policy to disallow remote shutdown. On XP I can find it as follows:
Control Panel->System Management->Local Security Policies->Local Policies->
Assignment of Usage Rights->Shutting down from a remote system. There I
could select the users or groups that are permitted to shut the system down. By
default this is the "Administrators" group. |
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CodeScript Moderator Team

Joined: 08 Jun 2003 Posts: 1060 Location: India
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Posted: Wed Aug 13, 2003 4:13 am Post subject: |
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Thanks Tommy for that tip
| Quote: | | Client for Microsoft Networks" and "File and Printer Sharing for Microsoft Networks" are not bound/enabled for your dial-up connection. | I have already done but | Quote: | | system policy to disallow remote shutdown | I had not done that. I will implement that too. BTW i have disabled RPC service also.
Thanks again. _________________ Regards
- CodeScript
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