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03.10.2003 at 05:36PM PST, ID: 20545667
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5.4

Hacker enables Winnt4.0 Guest account and assign Administrator right !!!!!

Asked by frank_white in Windows Network Security

Hello everyone,

I have a serious trouble.

The school server (Winnt4.0 sp6) security log displays that the "Guest" account has been enabled and join "Domain Admin", "Domain Guest" and "Administrator" group.

The log displays that the activity is taken in the midnight, and the "NT AUTHORITY\SYSTEM" is showed in the user field in the log.

I change the password, disable account, remove the admin group and disallow logon all of times.  However, this event occur again.

I assume that a hacker attack the server.

1. How can i prevent this event?
2. How can i check the system whether is inflected by any virus (Torjan Horse)?
3. Where can i get more useful infor. to solve it and improve the server secure?

I amd looking forward to receiving your reply.
Thank you for your attention.


Frank White
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[+][-]03.10.2003 at 05:44PM PST, ID: 8107685

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[+][-]03.10.2003 at 09:44PM PST, ID: 8108865

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About this solution

Zone: Windows Network Security
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Solution Provided By: ShadowWarrior111
Participating Experts: 7
Solution Grade: A
 
 
[+][-]03.11.2003 at 06:41AM PST, ID: 8111351

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[+][-]03.11.2003 at 06:48AM PST, ID: 8111415

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[+][-]03.11.2003 at 08:29AM PST, ID: 8112258

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[+][-]03.11.2003 at 10:42AM PST, ID: 8113315

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[+][-]03.11.2003 at 06:22PM PST, ID: 8116266

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[+][-]03.11.2003 at 09:00PM PST, ID: 8116986

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[+][-]03.11.2003 at 09:01PM PST, ID: 8116993

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[+][-]03.13.2003 at 06:23PM PST, ID: 8133344

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[+][-]03.13.2003 at 09:17PM PST, ID: 8134069

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[+][-]03.14.2003 at 03:54AM PST, ID: 8135498

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[+][-]03.17.2003 at 12:21AM PST, ID: 8150191

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[+][-]03.17.2003 at 03:21AM PST, ID: 8150909

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[+][-]03.17.2003 at 05:53PM PST, ID: 8156179

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[+][-]03.18.2003 at 05:43AM PST, ID: 8158908

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[+][-]03.19.2003 at 09:59PM PST, ID: 8171866

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[+][-]08.04.2003 at 07:35AM PDT, ID: 9070749

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[+][-]06.17.2004 at 04:41PM PDT, ID: 11340047

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[+][-]06.22.2004 at 03:51AM PDT, ID: 11367826

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