Re: Login Error - Microsoft authentication package v1



Hi Manfred, thanks for the information always a great help.

The process is inetinfo, and my conclusion ( my post was to help others) was
it was an attempt on port 25 SMTP..

We are reviewing OWA / RWW failed logins but we cant seem to find where to
turn logging on as any failed attempts dont seem to generate any alerts...
Any pointers would be great..


"Manfred Zhuang [MSFT]" <v-mzhuan@xxxxxxxxxxxxxxxxxxxx> wrote in message
news:1OFwjImYIHA.360@xxxxxxxxxxxxxxxxxxxxxxxxx
Hello Teneo,

Thank you for posting here.

From your post, I understand that some security warnings are found in
event
log.

This is probably an automated dictionary attack on weak passwords. The
hacker is trying variable username/password combinations to access the
network. The attack can be initiated from internal network or external
network. According to the message, Logon type 3 means Network logon;
Authentication Package: MICROSOFT_AUTHENTICATION_PACKAGE_V1_0 is the
default authentication package; advapi means "API call to LogonUser". It
is
most likely that the hacker is attempting to logon the Exchange services
such as OWA or SMTP.

You can check to see which process handles the session. For example, in
this event, the process ID is 1716. Write down the process ID,
Ctrl+Alt+Del
and click Task Manager. On the Processes tab. Click View -> Select
Columns.
Check PID (Process Identifier) and click OK. In the process list, find the
process with the PID of 1716. What''s the process?

Since it indicated the hacker attacking, I'd like to give the following
suggestions to improve the network security:

1. Scan virus on the workstations and the servers. Make sure the virus
software is up to date.

2. Implement Strong password policies. Click Start, click Server
Management
and click Users. In the right pane, click Configure Password Policies and
configure the password policies.

Account Passwords and Policies
http://www.microsoft.com/technet/prodtechnol/windowsserver2003/technologies/
security/bpactlck.mspx

3. Disable the Guest account.

4. Refer to the following document for more details:

Securing Your Windows Small Business Server 2003 Network
http://www.microsoft.com/technet/security/secnews/articles/sec_sbs2003_netwo
rk.mspx

Hope this helps.

Please feel free to let me know if you have any questions or if you need
further assistance.

I'm looking forward to hearing from you.

Best regards,

Manfred Zhuang(MSFT)
Microsoft Online Newsgroup Support

Get Secure! - www.microsoft.com/security

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--------------------
| From: "Teneo" <not@xxxxxxxx>
| Subject: Login Error - Microsoft authentication package v1
| Date: Mon, 28 Jan 2008 07:42:49 -0000
| Lines: 72
| X-Priority: 3
| X-MSMail-Priority: Normal
| X-Newsreader: Microsoft Outlook Express 6.00.2900.3138
| x-mimeole: Produced By Microsoft MimeOLE V6.00.2900.3198
| X-RFC2646: Format=Flowed; Original
| Message-ID: <ubPVjFYYIHA.4476@xxxxxxxxxxxxxxxxxxxx>
| Newsgroups: microsoft.public.windows.server.sbs
| NNTP-Posting-Host: mail.sxcomputers.co.uk 217.37.113.169
| Path: TK2MSFTNGHUB02.phx.gbl!TK2MSFTNGP01.phx.gbl!TK2MSFTNGP06.phx.gbl
| Xref: TK2MSFTNGHUB02.phx.gbl microsoft.public.windows.server.sbs:89031
| X-Tomcat-NG: microsoft.public.windows.server.sbs
|
| Logon Failure:
|
|
| Reason:
| Unknown user name or bad password
|
|
| User Name:
| 12345
|
|
| Domain:
|
|
|
| Logon Type:
| 3
|
|
| Logon Process:
| Advapi
|
|
| Authentication Package:
| MICROSOFT_AUTHENTICATION_PACKAGE_V1_0
|
|
| Workstation Name:
| SERVER
|
|
| Caller User Name:
| SERVER$
|
|
| Caller Domain:
| own domain name here, changed by me.
|
|
| Caller Logon ID:
| (0x0,0x3E7)
|
|
| Caller Process ID:
| 1716
|
|
| Transited Services:
| -
|
|
| Source Network Address:
| -
|
|
| Source Port:
| -
|
|
|
| Seen this posted before but couldn't find orig details and maybe its way
| back down the list so thought post again.
|
| I have found that this is related to login on port 25. (SMTP) if not
aware
| that password on port 25 is base64. Testing with normal password
| gives gobblegook. Try login with base64 username and password and get
exact
| result.
|
| Seeing alot of attacks on port 25 recently.
|
|
|
|



.



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