ExchangeDefender Phishing Firewall Whitelist and Blacklist explained
ExchangeDefender Phishing Firewall goes online tomorrow, and we wanted to explain our policy and our implementation of the URL rewriting/redirection because it is a departure from a traditional IT hierarchy where organizational policies override group and user requirements.
Our goal with ExchangeDefender PF is to provide a level of alert and notification to our clients that is designed to provide additional information about the link they clicked on. As we scale this service out, that will be it’s purpose: Be aware of what you clicked on, and prepare for what you’re about to see. Phishing, and spear phishing in particular, is designed to be a convincing fraudulent identity theft of an organization you know and trust (your bank, your coworker, your vendors) and our goal is to help you discern if something is valid or not.
Our whitelist/blacklist implementation is in line with “we inform, you decide” mantra, as we cannot outright block you from actually going to the dangerous site. That is the responsibility of your IT department, your network management, and your organization.
How do Whitelists and Blacklists work?
In ExchangeDefender we have 4 sets of whitelists and blacklists: user, domain/organization, service provider, and global. Our global lists are automatically populated for our service providers and when they protect a domain with ExchangeDefender, those entries are applied on the domain/organization level, and further down to the end user. As we continue to monitor, manage, and get additional intelligence about dangerous sites we will continue to curate these lists as a part of the service.
For example, we might find out that *.vlad8150.microsoft.net is a Microsoft Azure instance that is attempting to spread malware. We will promptly add it to our global blacklist and that site will now be blacklisted for every ExchangeDefender user. When they click on a link that leads them to that domain, they will see the ExchangeDefender PF notice with the URL in red. User will then have the option of ignoring it and proceeding to the site, or adding it to their whitelist. If they whitelist a domain/web site, any future requests will bypass ExchangeDefender PF web site and automatically redirect to the target URL.
The hierarchy of whitelists/blacklists is as follows, whichever rule is defined on the top is the one that is applied to the user when they click on a link.
But why, why not implement policies like NTFS, access list, or any other policy in which global deny rules override end user policies?
Simply put: Traffic blocking should be done on the network level. We are simply the alert service, we will advise you when we see something dangerous and it’s up to you to discern if the site is trustworthy or not. We believe that this implementation will cause the least amount of interruption to the day-to-day use.
That said, we have been working on additional controls and policies to help our service providers and CIO’s better enforce company security policies. As with everything, security policies must be implemented in layers – and dangerous content should be enforced in accordance to business requirements. This means that if your clients should not be downloading .exe files, the network firewall should be doing that. We don’t have the means to do that as an email service – users can right click on the email, put it in notepad, remove https://r.xdref.com/url= from the link and go straight to the web site.
How do we manage them?
ExchangeDefender PF whitelists are available at every level of ExchangeDefender. Simply add a site to either a whitelist and blacklist and ExchangeDefender will automatically propagate your rules down through the entire organization. Users will have the ability to add / block sites from the ExchangeDefender PF in real-time and their settings will be preserved in their account only.
P.S. Officially the service goes online tomorrow, unofficially it’s been in place for months we just haven’t rewritten a single URL except for the emails you received from us – we have worked very hard on the implementation and we don’t expect major problems but will have staff on hand around the clock to address any issues immediately. Spear phishing is an epidemic, over 90% of compromises start with a link in an email. We will handle any glitches, bugs, and issues as fast as possible and have full confidence that having an alerting service with potential problems is far more useful than having nothing and leaving clients exposed.
ExchangeDefender: Overhaul of Phishing Protection
ExchangeDefender is thrilled to announce the new Phishing Firewall in the cloud, going into full production – Wednesday, June 12th, 2019 for all ExchangeDefender Pro and Enterprise protected clients. The old way of highlighting, underlining, inserting warnings and so on will be removed from the service at the same time because it lacks the ability to protect clients in real-time.
The ExchangeDefender Phishing Firewall (EPF) is a real-time, active pishing protection. As ExchangeDefender processes inbound mail, it will rewrite every link to proxy it through EPF when user clicks on it. If the site is safe, the user will be automatically redirected to it and will not even know that EPF is in the way. If the site is not on the safe list, end users will see this warning:
They will have the option to just click on the link and proceed, add to whitelist (at which point they are automatically allowed through in the future) or add to blacklist.
Because of the way phishing works, and all identity theft or forgery in general, it is impossible to secure email messages in transit without making annoying modifications to the message that often distort the look and feel of it. Majority of those links are in the 95% of the mail that passes through ExchangeDefender as SPAM/SureSPAM, meaning that they would never even be seen by anyone. By moving the Phishing Firewall to the cloud, we can now secure every device and provide additional metrics and advisory on top of it to protect our clients from 0-day exploits.
This feature is provided to our clients free of charge and replaces expensive “security awareness training” solutions that users typically hate and do nothing to adequately secure the client. With Exchange Phishing Firewall we enable our clients to create custom policies, maintain whitelists, blacklists, get enterprise reporting and more. It further allows us to go one step beyond – in the upcoming releases we’ll offer the ability to display a screenshot of the site as well as link intelligence data (How long ago was the domain name registered? Where is the IP you’re about to go to located? Is the domain a close spelling error of a widely recognized site? Is the forged site just a cloud hosted Google, Microsoft or Amazon cloud service instance that is holding or redirecting you to another more dangerous location?)
If you’re currently on ExchangeDefender Essentials, we encourage you to schedule a demo with our team to check this feature out as it’s significantly cheaper than antivirus or “security training” solutions and will do a far better job. If you’re on ExchangeDefender Pro or ExchangeDefender Enterprise, you will get this feature free of charge. On Monday, June 10 we will send an email notification announcing this launch to our partners, MSPs, and Service Providers. On Tuesday, June 11 we will send an email notification to end users. Finally, on Wednesday, June 12th we will go live with the service and hope to minimize the annoyance of phishing once and for all. Email is the single most popular attack vector, with 91% of the compromises starting through a phishing attack, and we look forward to protecting all our users even better.
Phishing: Beware of Strangers
This Thursday, June 6th, we will be announcing a major overhaul in the way we deal with spear phishing SPAM. No, it’s not a mind-blowing patent-pending stroke-of-genius sort of stuff, it’s much closer to what your parents told you growing up: Don’t get into a car with strangers don’t click on links or open attachments from strangers.
In a way, ExchangeDefender has had protection from this issue for years. If you had a decent IT Solution Provider implementing ExchangeDefender for you, they would have setup your SPF record and eliminated this issue – but many don’t. Or they would have turned on ExchangeDefender protection where all messages spoofing/forging your domain would automatically get junked – almost none of them do. Which is why ExchangeDefender as a service has become less of an IT tool and more of an end user suite of services to get stuff done.
When features like this are left disabled “because they might become support issues” it becomes really difficult to secure users. But I get it, IT companies have a business to run too, which is why we’ve really stepped up our support efforts and are going to be there to help folks get things done without becoming an additional problem for the IT department. Doing so has really made us rethink how we implement features and how the service behavior needs to speak the same language as the end user. Which brings me to phishing beyond forgeries.
Can you spot a stranger?One of the new phishing protection features in ExchangeDefender will allow you to flag messages that are coming from outside of your organization. You will have two settings – to modify the subject and to modify the header of the message so when you look inside of your mailbox you’ll know what came from a stranger right away. Try it:
Even from the message listing you’ll know which messages shouldn’t even be opened. But suppose you ignored even that – you can set another warning, printed inside of the message, giving the user even more of an instruction of what to do.
Warning: Message was sent from outside of the organization. Do not click on links or open attachments if you don’t recognize the sender.
Far from subtle. And it has to be – because most people check email quickly, between tasks, or are simply interrupted by it. ExchangeDefender has your back, and we’ll make sure we alert you to possible issues before they become problems. Which we hope everyone will be aboard with.
Please join us, June 6th at Noon, for our NEW webinar featuring ExchangeDefender’s Phishing and Spoofing protection, plus see what’s new with Encryption, WFS, and Wrkoo!
Managing User Notifications
It’s no secret to anyone that’s been paying attention to this space that ExchangeDefender is getting a lot more user friendly – both in service and in design. We’ve been improving the way we communicate with our clients and our partners through efforts like embedded help, in-line training and support, real-time chat support, self service portals, NOC sites, etc
Next week we will launch a major feature in ExchangeDefender. It will address one of the biggest pain points in email security and it will give users a ton of control that will help close what is currently the biggest exploitable hole in email security: spear phishing. This will require us to give users a heads up about what they are about to see and training/documentation about how to use it to the fullest.
Which is where we have to make sure our partners are a part of the process too. During the webinar we’ll go over the details about how to insert branding and a message/note at https://admin.exchangedefender.com. This is generally not a big issue, since almost all of our partners would rather have us do more work for them than less, but if you’re really sensitive about this topic make sure you’re in the webinar to see what options you have and how to best leverage them for your own business purposes.
Looking forward to showing you all of this, and the redesigned ExchangeDefender Encryption product on June 6th at noon. https://register.gotowebinar.com/register/198414968804117507
ExchangeDefender PTR & RBL Whitelisting
ExchangeDefender is opening a wider beta test of our whitelisting functionality, which allows IT Solution Providers to whitelist sender mail servers that have broken DNS (missing PTR, mismatched A/PTR records) and poor sender reputation (hosts listed on multiple RBL blacklists).
If you have a sender you would like to whitelist against these essential network tests, please open a ticket at support.ownwebnow.com with subject “Whitelist PTR/RBL: IP Address” and provide as much information in the ticket so we can accommodate this specific request. Only hard non-negotiable rejections to whitelist will be for unknown address space and dialup/consumer cable IP addresses (because due to their nature those are typically dynamically assigned address spaces that shouldn’t be relaying mail at all, they should be using their ISP mail server provided smarthost)
Requests will be reviewed and either approved (and enrolled) or rejected within 24 hours by our CSO.
Background: Inability to previously whitelist broken DNS and dynamic IP address space is rooted in our mission statement. We are here, beyond everything else, to help secure the email. We know our partners, IT Solution Providers, VARs, MSPs, etc do not have the skill set, the time to properly research underlying issues, enough data and statistical models to evaluate sender IP reputation, or even the incentive to discern how big of a security threat and compromise a specific IP address with broken DNS or poor reputation may pose to your client.
In fact, you pay us to worry about those things and keep your clients secure. But, sometimes clients like to think they know better than their technology experts, generally accepted security standards on the Internet, and ExchangeDefender. And the client is always right. But, when they get infected attachments, broadcast storm, password dumps, or other security compromises because they insisted on lowering their security – then ExchangeDefender is on the hook for securing them. And we don’t get to say “told you so” nor do we have any rapid means to fix the issue.
Since my retirement, all of those hard-line policies designed to keep clients safe beyond whatever “specific business case requirement” they may have, are slowly going away. Good news for the client, good news for the partners. Good news for us, because going forward we will start providing Email Security Engineering services – so when you get a security compromise or an usual issue and you’ve asked us to compromise your security – we will be able to address the issue on your behalf.
I choose to look at this as a positive – we will help our clients meet their business needs and get the mail they desperately need – and if something breaks we will be there to help assist with the cleanup (for a fee, of course). This, among many other service related things, is just the part of the ExchangeDefender being more responsive and service oriented when it comes to our clients demands as opposed to our expert opinion as a security policy.
Network Upgrades at ExchangeDefender
Many IT professionals have gone through a lifecycle infrastructure upgrade – the all important cycle of improving the infrastructure as the vendors push down new features with ever increasing resource demands. We’ve been doing that since 1997. One thing that has changed in the past 20 years is the scope and magnitude of both attacks and the network demands to manage them all. We’ve done an excellent job keeping up with them all, with our last major outage (that lasted nearly 4 hours) back in 2011. We learned a lot that day – and rolled it up into our products and services that many of our partners have experienced. These days, with the cloud services, the game is completely different.
I hope you have a moment to join our WEBINAR next Thursday, April 11th, at noon
Register here: https://attendee.gotowebinar.com/register/5700720797827651073
It won’t be the usual rah-rah new features new stuff show. I will speak candidly about how we’ve managed to overcome and triumph in the “Cyber” security game and how we’re still always one step behind whatever 0-day attack vector comes down. I’ll be discussing (somewhat intimate) details about the performance issues, DNS issues, DC issues, subscription issues, 3rd party IP issues, and how all of these have become both an IT management issue and customer service nightmare. I truly hope you join us. I know your time is valuable and schedules get tight so if you can’t make it, the recording will be posted in our portal as usual.
What we learned last week – for the millionth time – is that communication in cases of issues is paramount. When things appear to go down, people panic. They require not just information but reassurance, confidence, and a plan required to address issues. For smaller companies, that’s a matter of just falling back to a cell phone – for larger ones (if it’s not already you, it definitely is something to consider for your clients) that is simply not an option and the volume of activity will easily and quickly overwhelm you. I used to see it every day – when issues come up for our partners, their clients call us.
We’ve made an overwhelming investment – not just in technology and features but manpower – that has fueled our growth for the last few years. I want to share, personally, exactly how we operate and how we’ve been able to both prioritize and execute some of the more impressive infrastructure enhancements and how they are going to be here to serve you for years when something happens.
And then I hope to offer you the same – as a token of our appreciation for your business and your loyalty through the years. Pretty excited, I hope you can join us.
Sincerely,
Vlad Mazek
CEO
ExchangeDefender
ExchangeDefender Exchange Account Lockout
ExchangeDefender is relieved to announce the availability of automated account lockout notifications. Our clients now have the ability to automatically locate, secure, and unlock email accounts that have been locked down due to too many bad login attempts.
You will now notice a red lock icon next to any accounts that have been locked out and you can choose how to proceed in terms of restoring account access:
Password hacking and guessing is rampant, and has only been getting worse through 2018. Thankfully, we’ve automated the process of unlocking and changing authentication credentials in 2019.
However, there is a special case in which just “Unlock Only” option may be the best.
Suppose you have a power user that has a desktop at work, at home, a laptop or two, 2 iPads, iPhone, Galaxy S9 and a miscellaneous other device that is set to sync mail every minute. Totally not talking about our CEO. But suppose that is the case and you just changed the password – well if all these other devices are trying to authenticate with the old password you may actually trip your corporate policy for the unlock limit and lock the account again.
We hope this automated system will save our partners a ton of time and make managing security and security incidents a breeze. We wish we could have delivered this much sooner but as anyone involved in cybersecurity will tell you, priority #1 is always mitigation of the issue (which we’ve done through all our Exchange 2016 UI and management discussed in our webinars).
This feature will go live later this week (Feb 21, 2019) – please give us feedback and suggestions on what more we can do to give you more power or save you time.
UPDATE: ExchangeDefender Enterprise Security Features
To say that our security webinar went well is an understatement – partners actually loved it. It’s a strange and welcome departure from how my security and hacking conversations usually go (nobody ran away from me crying and screaming into their cell phone) and I cannot tell you how gratifying it felt to introduce security features and have people line up to offer them.
Frankly, it was time. The state of email (and email security) is unsustainable if we let the users and infrastructure we manage act like account security is an afterthought – that just leads to more compromised endpoints that just amplify the next attack that will be more sophisticated, harder to defend – AND – will eventually lead to increase in costs as more infrastructure is needed to protect users who want to act the same ways spammers do. We’ve put a smart lock on the door, it’s your choice whether you want to lock it.
That said – all these features are a part of the ExchangeDefender Enterprise which is designed for very large companies and government where organizational policies override any complaints and gripes end users may have with the security inconvenience. Which is exactly the opposite from the small businesses that MSPs tend to manage.
We get it. And we’re not giving up.
In the nearly two weeks that we’ve been rolling out the new security features to the MSP/SMB UI, we’ve noticed some severe pain points for our users that we’ve moved very aggressively to address and mitigate. Which is my commitment to you – we will keep on stepping up the security and we will find ways to mitigate some of the prompts, alerts, and notifications along the way if you don’t want your users to be aware of what is going on under the hood.
First up, if you’ve chosen to lock down ExchangeDefender admin panels to the restricted IP range you own, you now have the option to turn off email notices every time a login attempt is made from outside of this range.
We’re in progress of making additional changes and exceptions to the IP address restriction policy and removing it from the SPAM release process – so if your employees are mobile or working from home they will soon be able to release a legitimate message (false positive SPAM) from anywhere even with IP restrictions in place. They won’t be able to login to the control panel and make modifications or see other settings but they will be able to get to their email.
We hope this feature enhancement will reduce the amount of email notifications – you will still see them in your event logs.
Second, we have opened up our OTP/2FA infrastructure to the whole world.
Finally, the alerts on the clients dashboard. I am going to phrase this carefully as I’m not happy to announce this and will likely change it eventually: You can turn that alert off and stop users from being required to change their passwords very X days. Just set the value to 0. We will revisit this within 30 days but as a mitigation to any unwelcome support calls, yes 0 will just turn it off.
We’ve been working on the announcement and training features for quite some time now and we hope that they will make security implementation and support a problem for ExchangeDefender to handle, instead of burdening our partners with it. In an ideal world, those features would have launched first and we’d slowly trickle down ExchangeDefender Enterprise. Unfortunately, another 600+ million usernames, passwords and other PII has been leaked last week from some very popular sites and the odds that those users and passwords have the same credentials there as at ExchangeDefender are pretty good.
My point is, we are paid to protect and lock down your organizations communication and secrets, something we take extremely seriously. In order to protect all the data you trust us with, we have to lock things down. And as we do so, we will keep user experience front and center.
Thank you for trusting us with your data and thank you for your business.
Sincerely,
Vlad Mazek
CEO
ExchangeDefender
Better Password Policies
ExchangeDefender has been SMB friendly – to a fault, but the era of terrible passwords and plain text passwords is finally over. Not a single piece of ExchangeDefender stores (or offers) user credentials in plain text anymore. We’ve made the transition exceptionally smooth as well, requiring no changes or IT intervention at all.
But we cannot encourage it enough. And over the next year you will see us introduce several features meant to help you lock down ExchangeDefender and use it to lock down your overall IT security strategy. We’re happy to introduce password age configuration that allows you to force users to reset their passwords automatically.
This setting can be accessed from the Domain Administrator > Policies > Features section of admin.exchangedefender.com
When the password is older than your preset number of days (by default, 90) the user will see an ugly red notice telling them to update their password.
If you set the password expiration to 0 days you will turn this feature off entirely but we cannot discourage it more. The feature is there to help your users avoid having their accounts compromised.
If you implement some of these stronger security features we’ve also got you when it comes to minimizing account management – users can reset their password at any time if they have their PIN on them. So even if their mail server is down, having their PIN handy will let them reset the password without additional authentication. Forgot your pin? No problem, we can email you a reset link to a known email address.
As you can tell, ExchangeDefender will go the extra step of helping your users configure a strong password. It will also keep memory of recent passwords so that they can’t just rotate it back and forth between the same two passwords they use elsewhere.
As you’ve seen with mass password resets , access to advanced access logging , known trusted devices and IP restrictions , we are adding more, and more, of our enterprise features to the ExchangeDefender Pro product.
To hear about all these new security features in more detail please check out the webinar that covers our current security portfolio and how these features make sense.
ExchangeDefender IP and Device Restrictions
ExchangeDefender IP and Device Restrictions
ExchangeDefender is continuing it’s march to becoming your central point of secure communications by bringing even more of our custom Enterprise features down to the SMB/MSP space. As of today, you will start seeing another section added to the Service Provider screen specifically to house our advanced security settings.
Restrict ExchangeDefender access to your IP range
All large organizations that depend on ExchangeDefender have static IP addresses and IP ranges assigned to them by the ISP. ExchangeDefender has the power to restrict access to your organization (all domain and user logins) and only allow access from your offices.
Add Trusted/Known Devices For Easier Access
People love the notion of security until that security gets in a way by prompting them. We only want our security infrastructure to get in a way of hackers and to slow down and annoy people that want to do us harm. Good news is, now you can add devices you know to known and trusted device list.
Doing so will minimize some of the additional checks and verification (such as 2FA/OTP one time password checks when you first log in from an unknown address). As an additional bonus, ExchangeDefender will start to deliver notifications and alerts whenever the system is accessed (successfully, meaning they know your password) from an unknown/untrusted device, giving you the first alert that there is a security issue to address.
As you’ve seen with mass password resets, access to advanced access logging, we are adding more, and more, of our enterprise features to the ExchangeDefender Pro product. To find out what else is on our road map, and how ExchangeDefender will evolve in 2019 to serve your other security needs, please tune into our webinar:
