Re: Getting lot's of security errors in Security Log - Event ID 680 & 529
- From: v-terliu@xxxxxxxxxxxxxxxxxxxx (Terence Liu [MSFT])
- Date: Thu, 26 Apr 2007 07:27:45 GMT
Hello Mike,
Thank you for kind reply.
I was just writing to say that I hope everything is going well.
Please do not hesitate to let me know if there's anything else I can do for
you.
Thank you and have a nice day,
Best regards,
Terence Liu(MSFT)
Microsoft CSS Online Newsgroup Support
Get Secure! - www.microsoft.com/security
=====================================================
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Any input or comments in this thread are highly appreciated.
=====================================================
This posting is provided "AS IS" with no warranties, and confers no rights.
--------------------
| From: "Mike Webb" <Mike_Webb@xxxxxxxxxxxxxxxxx>
| References: <#5iNxrohHHA.4772@xxxxxxxxxxxxxxxxxxxx>
<t2#nJtwhHHA.2164@xxxxxxxxxxxxxxxxxxxxxx>
| Subject: Re: Getting lot's of security errors in Security Log - Event ID
680 & 529
| Date: Wed, 25 Apr 2007 07:58:47 -0500
| Lines: 243
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| I;ll do this and report back, thanks!
|
| "Terence Liu [MSFT]" <v-terliu@xxxxxxxxxxxxxxxxxxxx> wrote in message
| news:t2%23nJtwhHHA.2164@xxxxxxxxxxxxxxxxxxxxxxxxx
| > Hello Mike,
| >
| > Thank you for your post.
| >
| > According to your description, I understand that you get many 529 and
680
| > event errors on your SBS server. If I have misunderstood the problem,
| > please don't hesitate to let me know.
| >
| > Based on my research, I suggest we try the following steps to see if we
| > can
| > resolve this issue:
| >
| > For the event 529:
| >
| > First, I have to set expectation that this may be a hacker activity that
| > guessed the administrator password. I suggest we try the following
steps
| > to
| > improve your SBS security level:
| >
| > 1. Enable complicated password policy.
| >
| > Note: The Password Policy need to be configured in Default Domain
policy.
| >
| > We can configure the settings under:
| >
| > Computer Configuration\Windows Settings\Security Settings\Account
| > Policies\Password Policy
| >
| > 2. Configure account lockout policy.
| >
| > Generally, it is a best practices suggestion to set the Threshold value
to
| > 10 or higher. This is high enough to rule out user error and low enough
to
| > deter hackers, especially when the password complexity policy is
enabled.
| >
| > For medium security requirement, the recommended configurations are:
| >
| > Reset account lockout counter after: 30
| > Account lockout duration: 30
| > Account Lockout Threshold: 10
| >
| > For high security requirement, the recommendations are:
| >
| > Reset account lockout counter after: 30
| > Account lockout duration: 0
| > Account Lockout Threshold: 10
| >
| > For more information, please refer to:
| >
| > Account Passwords and Policies
| >
http://www.microsoft.com/technet/prodtechnol/windowsserver2003/technologies/
| > security/bpactlck.mspx
| >
| > 3. Check your firewall to ensure that only the necessary ports are
opened.
| >
| > 4. Ensure the above settings have been successfully applied.
| >
| > 1) On the problematic SBS server, please run the following command to
| > refresh the group policy changes:
| >
| > GPUPDAGE /FORCE
| >
| > 2) Run SECPOL.MSC and check the above changed password, Account lockout
| > and
| > auditing policies to see their effective settings, and ensure that the
| > policies have been applied successfully.
| >
| > If the policies have been applied successfully, we should have enhanced
| > the
| > security protection of that server.
| >
| > 5. The issue may occur if the remote SBS server sends broadcast packets
to
| > the network. I suggest you change the "nolmhash" value to "0" in the
| > following registry key on the SBS server:
| >
| > HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\LSA
| >
| > Reboot the server for this change to take effect and check if the event
| > does not appear.
| >
| > 6. If the event still appears, go to
| >
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\lanmanserver\Parameters
| > and set "enablesecuritysignature" and "requiresecuritysignature" to "0".
| > Reboot the server and check if everything is OK.
| >
| > 7. There are several running processes on the computer that will
attempt
| > to
| > connect using the machine account.
| >
| > This behavior can happen when the machine password is not properly sync.
| >
| > In order to reset the machine account password of a domain controller
use:
| >
| > NETDOM RESETPWD /Server:ServerName /UsedD:Administrator /PasswordD:*
| >
| > The syntax of this command is:
| > NETDOM RESETPWD /Server:domain-controller /UserD:user
/PasswordD:[password
| > | *]
| >
| > NETDOM RESETPWD Resets the machine account password for the domain
| > controller
| > on which this command is run. Currently there is no support for
resetting
| > the machine password of a remote machine or a member server. All
| > parameters
| > must be specified.
| >
| > /Server Name of a specific domain controller that should have
its
| > machine account password reset.
| >
| > /UserD User account used to make the connection with the domain
| > controller specified by the /Server argument.
| >
| > /PasswordD Password of the user account specified with /UserD. A *
| > means
| > to prompt for the password
| >
| > After completing the command, reboot the server.
| >
| > For the event 680:
| >
| > Based on my research, the specified event does not mean real issue on
the
| > client side in most of situations. The most possible reason for this
issue
| > is a service or application on a certain computer in the domain is still
| > trying to use the old password of this account for domain
authentication.
| > Also, it could be a normal behavior since the SBS server has some
services
| > open to the internet. For example, when a user wrongly input the
| > username/password, the event will also be triggered in some cases.
| > Therefore, you can simply ignore it if there is no business influence.
| >
| > Suggestions:
| >
| > 1. Please refer to this KB article to reset the security channel on the
| > SBS
| > Server:
| >
| > 830069 You receive the "The target principal name is incorrect" error
| > message
| > http://support.microsoft.com/?id=830069
| >
| > 2. You can check the time/timezone setting on these clients and the SBS
| > box
| > to verify whether the time on them have been synced.
| >
| > 3. Please follow the steps below to disable auditing policies:
| >
| > a. Click Start -> All Programs -> Administrative Tools -> Default Domain
| > Security Policy.
| >
| > b. Expand Security Settings -> Local Policies -> Audit Policy.
| >
| > c. In the right pane, double click the auditing policy. Let's disable
all
| > event auditing.
| >
| > If we can not resolve the issue after we perform the above steps, please
| > kindly help me collect some information for further investigation:
| >
| > Save the security event log as evt files on the problematic machine and
| > send to my mailbox: v-terliu@xxxxxxxxxxxxx
| >
| > Hope these steps will give you some help.
| >
| > Thanks and have a nice day!
| >
| > Best regards,
| >
| > Terence Liu(MSFT)
| >
| > Microsoft CSS Online Newsgroup Support
| >
| > Get Secure! - www.microsoft.com/security
| >
| > =====================================================
| > This newsgroup only focuses on SBS technical issues. If you have issues
| > regarding other Microsoft products, you'd better post in the
corresponding
| > newsgroups so that they can be resolved in an efficient and timely
manner.
| > You can locate the newsgroup here:
| > http://www.microsoft.com/communities/newsgroups/en-us/default.aspx
| >
| > When opening a new thread via the web interface, we recommend you check
| > the
| > "Notify me of replies" box to receive e-mail notifications when there
are
| > any updates in your thread. When responding to posts via your
newsreader,
| > please "Reply to Group" so that others may learn and benefit from your
| > issue.
| >
| > Microsoft engineers can only focus on one issue per thread. Although we
| > provide other information for your reference, we recommend you post
| > different incidents in different threads to keep the thread clean. In
| > doing
| > so, it will ensure your issues are resolved in a timely manner.
| >
| > For urgent issues, you may want to contact Microsoft CSS directly.
Please
| > check http://support.microsoft.com for regional support phone numbers.
| >
| > Any input or comments in this thread are highly appreciated.
| > =====================================================
| >
| > This posting is provided "AS IS" with no warranties, and confers no
| > rights.
| >
| > --------------------
| > | From: "Mike Webb" <Mike_Webb@xxxxxxxxxxxxxxxxx>
| > | Subject: Getting lot's of security errors in Security Log - Event ID
680
| > & 529
| > | Date: Tue, 24 Apr 2007 11:09:17 -0500
| > | Lines: 16
| > | X-Priority: 3
| > | X-MSMail-Priority: Normal
| > | X-Newsreader: Microsoft Outlook Express 6.00.2900.3028
| > | X-RFC2646: Format=Flowed; Original
| > | X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028
| > | Message-ID: <#5iNxrohHHA.4772@xxxxxxxxxxxxxxxxxxxx>
| > | Newsgroups: microsoft.public.windows.server.sbs
| > | NNTP-Posting-Host: 70-41-134-198.cust.wildblue.net 70.41.134.198
| > | Path: TK2MSFTNGHUB02.phx.gbl!TK2MSFTNGP01.phx.gbl!TK2MSFTNGP05.phx.gbl
| > | Xref: TK2MSFTNGHUB02.phx.gbl microsoft.public.windows.server.sbs:32349
| > | X-Tomcat-NG: microsoft.public.windows.server.sbs
| > |
| > | Running SBS 2003 Premium, ISA 2004, SQL, WSUS, 2 NIC's and a router,
| > | Symantec Backup Exec 11d, dynamic IP, DDNS service through dyndns.org.
| > | ============================
| > | My weekly Server Report has over 5,000 logon errors for the
| > Administrator
| > | account. Checking the logs and their links, seems to be a bad
password.
| > | Can't tell where or what service, so I don't know where to go from
here.
| > I
| > | suspect I'm seeing hack attempts.
| > |
| > | Any advice/comments?
| > |
| > | --
| > | Mike Webb
| > | Platte River Whooping Crane Maintenance Trust, Inc.
| > | a 501 (c)(3) conservation non-profit organization
| > |
| > |
| > |
| >
|
|
|
.
- References:
- Getting lot's of security errors in Security Log - Event ID 680 & 529
- From: Mike Webb
- RE: Getting lot's of security errors in Security Log - Event ID 680 & 529
- From: Terence Liu [MSFT]
- Re: Getting lot's of security errors in Security Log - Event ID 680 & 529
- From: Mike Webb
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