CoNetrix is built on the principles of integrity, innovation, and initiative.

CoNetrix is a full service computer networking, security and compliance firm built on the principles of integrity, innovation, and initiative. We specifically serve financial institutions as well as enterprises requiring a high level of security in their operations. Our employees are diligent in preserving the highest caliber of integrity, unassailable professional conduct, and personal conduct that is beyond reproach. Our entire business is based on trust that we will deliver on expectations, agreements, and promises.

NEWS

CoNetrix Champions 2020 National Cybersecurity Awareness Month

10/6/2020

CoNetrix, a leading provider of information security and technology services, announces its participation in National Cybersecurity Awareness Month 2020. By becoming a champion, CoNetrix joins the national campaign to help businesses stay safer and more secure online.

BLOG

Microsoft NetLogon Vulnerability "Zerologon" - Immediate Action Recommended

9/24/2020

ARTICLE

Mobile Devices at Work – How to Allow Them While Protecting Your Bank

7/1/2020

We all love our mobile devices. If you look around in any restaurant, walking down the street, even while driving (not a safe idea), you will see people glued to their mobile phones.  In the past few years, the line has blurred between our personal mobile devices and business devices.  Especially now, as a large part of the workforce is working from home due to the COVID-19 pandemic, personal mobile device use is the norm for millions of people. We must be prepared that many employees may want to continue using their personal mobile devices as they transition back to the workplace.

BLOG

Windows Domain Account Locking Weekly

6/30/2020

I recently worked with an admin user from one of our clients. Her account kept locking out each Friday @ 6 PM. I checked Netwrix and found the server that was locking the account. This was also in the event viewer on the domain controller. I checked the credential manager on that server for any cached accounts and found none. I checked the task scheduler and there were no scheduled tasks. I checked the event viewer to verify the lock out, and found the account was trying to connect to a CIFS share. The fix was to run this command as an administrator on that server: 'rundll32 keymgr.dll,KRShowKeyMgr'.This will open a "Store User Names and Passwords" window. In that window, I found the user ID that was locking and removed it.

BLOG

Tips on Cleaning Up File Share Permissions

6/30/2020

For most customer networks, file servers turn into a mess over the years. This is usually due to a few things. First, users have access to make folders at high levels and then place data in those folders that should have access restricted. Second, users try to solve the first problem by securing those folders, but end up breaking access to administrator accounts. Third, most lack a logical structure or any guidance as to where certain documents should be stored, so documents end up in multiple folders.I have been working with a customer who had all of these issues, along with the need to merge two file structures into a single structure after the merger of their two companies. My suggestion to the customer was to come up with a structure for five to ten top level folders that would be the shared folders. Their primary focus for the top level folders was by department (HR, Finance, Legal, etc.) We then tightly controlled the second to fifth levels, depending on the granularity needed of the specific folder. At the controlled levels, we did not allow users to make new folders or files and also prevented them from changing the permissions for these folders. We used a combination of list, read, and read/write access to all of these folders. We created an Active Directory group for each folder and the level(s) of access necessary for that folder. We then created additional groups in Active Directory based on job role and made these groups members of the Active Directory groups used for setting permissions on each folder.After setting all of the folder permissions, I found that the Owner of the file or folder had Full Control even if they should not have this level of control based on the NTFS permissions. This can be fixed by setting OWNER RIGHTS to none, which will cause the permissions explicitly defined to be enforce and not be circumvented by OWNER RIGHTS.The partial folder tree shown in the screenshots below is as follows:

ARTICLE

Effective Tips to Boost Your Employee Security Awareness Training Program

6/15/2020

There you are, working diligently at your computer when you receive the dreaded email.  You are invited (required) to attend the upcoming annual Employee Security Awareness Training session.  Oh no, has it already been a year?  Please, please don't make me sit through that long, boring training and waste an hour or more of my day, AGAIN.  Sound familiar?

BLOG

Don't use common IP addresses for your servers

5/30/2020

We had a customer create a task for a handful of users not being able to access the company's file server while working from home. The IT Director at this company used to work for aa different customer and had just recently moved to this company and inherited this network. After talking to him about this server, he said the IP address of the file server was 192.168.1.1. There were also a few other servers some people had trouble accessing at times, but the file server was the main server they needed. The issue was obvious in that the file server has the same IP address as many home routers.The customer has a Cisco ASA, so I tired to setup AnyConnect to NAT the traffic across AnyConnect. I setup a twice NAT across the AnyConnect VPN tunnel, but when the DNS server replied with the IP addresses, the replies were not NAT'd. The solution to this is DNS Doctoring, but DNS Doctoring only works with object NAT so this did not work. We could have setup these users to connect to a different IP address when offsite so DNS Doctoring was not needed, but this did not seem like a good solution.

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Conflicting User Accounts with On Premise and Azure Active Directory

5/30/2020

I've run into this issue a few times over the past few months and the fix has been roughly the same each time. Typically, what will happen is that a user account is created in Azure AD with a specific username/UPN. Later on, an account will be synced from the on-premise Active Directory environment with the same username/UPN. Azure tries to automatically reconcile this during the sync by renaming the synced account and appending numbers to the end.Naturally, this is a problem if you need the on-premise AD account to be the authoritative copy. The first thing to be resolved is whatever is causing the conflict in the first place. Once that is resolved, Azure won't automatically rename everything back. Not to mention that once the account is already synced, it won't auto update the account as the source has not been changed since the original sync.Since deleting and re-creating the on-premise account isn't always the best option, your solution is fairly simple – update the attribute on the source side to some bogus value, force a delta sync, update the attribute back, and force a delta sync again.For example, if the email address of your on-premise user is tuser@domain.com and the Azure AD account shows the SMTP attribute is listed as tuser5589@domain.com, update the primary SMTP value in the proxyAddresses attribute to tuser1@domain.com and force a delta sync. Azure AD should then show tuser1 as the primary SMTP value with tuser5589 no longer listed. Once you see that, change it back to tuser@domain.com and force another delta sync.I've had to run through similar steps with the proxyAddresses and the UPN attributes for the conflicting objects.

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AppLocker Packaged Rules Breaking Start Menu

5/30/2020

We have a customer that I'm working with to rebuild their RDS farm from 2008R2 servers to 2016. Once I finished the initial deployment, I began testing the builds and realized pretty quickly that I couldn't open the start menu or use even use the search feature in the taskbar no matter what I tried.

BLOG

Changing Time Zone on Windows 10 Home

5/30/2020

My home Surface Mini running Windows 10 would default to Pacific time zone instead of Central. I would change the time zone, but when the system was rebooted it would default back to Pacific. One place where you change the time zone we would get an "Unable to continue" error. After trying a few things, I attempted using the command prompt to change the time zone & it worked. Here are the time zone commands you can use:

BLOG

Outlook: Something went wrong and your search couldn't be completed

5/30/2020

I had a customer who had several users who could not do any searching in Outlook. The error was, "Something went wrong and your search couldn't be completed." along with a mention of the appearance of there being no network connection.Another engineer had been talking with one of the customer's IT people about a different issue and apparently they may have accidently turned off EWS (Exchange Web Services) globally while investigating/troubleshooting another problem. I compared the broken mailbox to a known working mailbox and the working mailbox had EWS enabled, so I re-enabled it using some Powershell commands and the user was now able to search. To check if EWS is enabled/disabled - get-casmailbox someMailbox@domain.com | fl *ews*To turn on EWS on for Outlook - Set-CASMailbox someMailbox@domain.com -EWSEnabled $true -EWSAllowOutlook $truehttps://docs.microsoft.com/en-us/powershell/module/exchange/client-access/set-casmailbox?view=exchange-psExchange Web Services is typically on by default for Outlook as it is used for a variety of functions including searching, calendar shares, permissions and availability, shared mailbox permissions, and out of office settings.

BLOG

iOS Privacy Restrictions Preventing Login to Microsoft Teams

5/30/2020

After changing my domain password, the Microsoft Teams app on my iPhone signed me out, and I was unable to sign back in. When I would enter my username & password, it would go to a white screen with a spinning circle for several minutes and eventually time out. After trying several things I finally wondered if some of my content/privacy restrictions might be causing the problem & sure enough that was the case.

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