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Anybody can specify  ALL firewall rules for MBAM???

Especially I have these:

C:\Program Files\Malwarebytes\Anti-malware\Assistant.exe

1.   Allow connect through child                                                                                              YES or NO?

C:\Program Files\Malwarebytes\Anti-malware\Mbamservice.exe

1.   Allow connect through child                                                                                               YES or NO?

2.   TCP /443 to "hubble.mb-cosmos.com"                                                                             YES or NO?

 

 

Thanks!

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I don't know what "allow connect through child" is, but I do know that you need the following rules for mbamservice.exe to allow Malwarebytes 3.x to function properly

  1. Allow port 443 access to hubble.mb-cosmos.com
  2. Allow port 443 access to telemetry.mwbsys.com (not required, but if you want to block this, you can just turn off telemetry in the settings)
  3. Allow port 443 access to sirius.mwbsys.com
  4. Allow port 443 access to keystone.mwbsys.com

I think that's it, I'll double check after the holiday and let you know if I missed any

assistant.exe should not need access to the internet

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4 hours ago, dcollins said:

I don't know what "allow connect through child" is, but I do know that you need the following rules for mbamservice.exe to allow Malwarebytes 3.x to function properly

  1. Allow port 443 access to hubble.mb-cosmos.com
  2. Allow port 443 access to telemetry.mwbsys.com (not required, but if you want to block this, you can just turn off telemetry in the settings)
  3. Allow port 443 access to sirius.mwbsys.com
  4. Allow port 443 access to keystone.mwbsys.com

I think that's it, I'll double check after the holiday and let you know if I missed any

assistant.exe should not need access to the internet

Connection through child is a way of bypassing the firewall rules:  for example you allowed "Mbamservice.exe" to access the internet  and blocked "Assistant.exe" to access the internet.However, Assistant.exe can start the child " Mbamservice.exe" and access the internet.

 

So far I have:

C:\Program Files\Malwarebytes\Anti-malware\Mbamservice.exe

ALLOWED: 

443 TCP   to              my-device.malwarebytes.com

443 TCP   to              keystone.mwbsys.com

443TCP    to              sirius.mwbsys.com

 

BLOCKED

 

80  TCP     to             13678.dspb.akamaiedge.net

80  TCP     to             crl.microsoft.com

443TCP     to             cdn.mwbsys.com

443TCP     to             iris.mwbsys.com

443TCP     to             telemetry.malwarebytes.com

443TCP     to             hubble.mb-cosmos.com

 

 

Can anyone explain what each and every connection is doing and why we should accept it?

 

Thanks!

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I'm not sure about all of them but hubble.mb-cosmos.com is for the cloud component of the anomalous detection/heuristics scanning and protection component (Machine Learning/new and unknown file classification system).  I believe cdn.mwbsys.com is for program version updates (like the recently released component update as well as full program version updates).  telemetry.malwarebytes.com is obviously for telemetry which, as dcollins mentioned can be disabled in Malwarebytes settings.  I'm not sure about the others so we'll have to wait to hear back from dcollins on those.

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51 minutes ago, exile360 said:

as dcollins mentioned can be disabled in Malwarebytes settings

I have telemetry disabled, yet is asking for connection.

52 minutes ago, exile360 said:

cdn.mwbsys.com is for program version updates

I blocked it, and MBAM doesn't complain, is checking for program updates

 

53 minutes ago, exile360 said:

but hubble.mb-cosmos.com is for the cloud component of the anomalous detection

So, if something is determined to be "anomalous" by the cloud will be detected on the spot or is just one way info (from my PC to the cloud)???? 

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We can't go too much into detail without giving away some internal workings of our product. But here's what the different sites provide:

80  TCP to 13678.dspb.akamaiedge.net > CDN delivery network for updates
80  TCP to crl.microsoft.com > certifcation revocation list check
443 TCP to cdn.mwbsys.com > CDN delivery network for updates
443 TCP to iris.mwbsys.com > In-app product messaging
443 TCP to telemetry.malwarebytes.com > Product usage and functionality data, for more detail see https://www.malwarebytes.com/privacy/
443 TCP to hubble.mb-cosmos.com > Cloud file classification system
443 TCP to sirius.mwbsys.com > Update information
443 TCP to keystone.mwbsys.com > Licensing information

As for your followup questions:

  1. I did forget that even if the Telemetry option is disabled, some telemetry information is still sent up regarding threat detection information. Normal usage telemetry is disabled though. More details should be outlined in the privacy policy.
  2. cdn.mwbsys.com i'm still getting clarification on, because it's a holiday, may take some time
  3. The anomalous detection is done both in the cloud and on your PC, but blocking access to Hubble severely limits the capability of that detection. It's also not used just for anomalous detection, but in other detection algorithms as well.
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The hubble address is also used to update the locally stored database that gets pulled from the cloud which provides new data to the anomalous detection component, so things like whitelisting for FPs and enhancements to the detection algorithms used by that component will not be updated if that address is blocked, at least that's what I've gleaned from looking at posts and info from the Research and Dev teams on the subject.

As for the program still updating, that's database updates which are checked through a separate system from program/component updates.  For example, the recently released component update 1.0.441 would go through that address, not the one used for database updates.

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Do most firewalls even filter by URL/server?  I thought most presented the option to allow individual applications/executables to communicate, not to prompt for which servers to allow those applications/executables to connect to so I'm not sure how useful that kind of info would be.  In fact, I don't think I've ever seen anyone else ask about it in this context (i.e. with regards to firewall rule creation), I've only ever seen the very rare post where someone was just curious about one specific URL or another just to see what Malwarebytes was connecting to and why (though even those are extremely rare and I only recall ever seeing maybe one or two ever in the past).

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Hello,

The question has been asked before but I did not get a clear cut answer.

It seems like ever .exe from MBAM is trying to communicate OUT over internet:

 

C:\Program Files\Malwarebytes\Anti-malware\Mbam.exe

TCP 443 to    www.malwarebytes.com

TCP 443 to    cleo.mb-internal.com

TCP 443 to    links.malwarebytes.com

 

C:\Program Files\Malwarebytes\Anti-malware\Mbamtray.exe

TCP 443 to    cleo.mb-internal.com

TCP 443 to    www.malwarebytes.com

TCP 443 to    cdn.mwbsys.com

TCP 443 to    links.malwarebytes.com

 

C:\Program Files\Malwarebytes\Anti-malware\Mbamservice.exe

TCP 443 to    iris.mwbsys.com

TCP 443 to    my-device.malwarebytes.com

TCP 443 to    cdn.mwbsys.com

TCP 443 to    sirius.mwbsys.com

TCP 443 to    keystone.mwbsys.com

 

C:\Program Files\Malwarebytes\Anti-malware\Assistant.exe

* communicates using Mbam.exe

 

Can anybody clarify, please , why there is need for such "correspondence over the internet and which connection is ABSOLUTELY necessary for MBAM to work properly?

 

Thanks!

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If you are having technical issues with our Windows product, please do the following: 

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NOTE: The tools and the information obtained is safe and not harmful to your privacy or your computer, please allow the programs to run if blocked by your system.

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  • Transaction Receipt

Please contact our support team at https://support.malwarebytes.com/community/consumer/pages/contact-us to get help

If you need help looking up your license details, please head here: https://support.malwarebytes.com/docs/DOC-1264 

 

Thanks in advance for your patience.

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  • Staff

I don't know about all of them specifically, however I do believe that the following items constitute the majority, if not all of it:

  • Database updates/signatures for the Malware Protection component and scan engine
  • Database updates for Web Protection (I don't know if these are hosted separately or not, but they may be
  • Program version updates and software component updates (these may use separate servers/systems from one another; I'm not certain)
  • Cloud based object analysis and file database updates (hashes for known files, FP database whitelists etc.)
  • Licensing key validation/checkin for anti-piracy as well as key conversion for old format ID/Key licenses to the new single string license key format
  • Subscription validation/checkin for accurate display/notifications of the current subscription and number of days remaining
  • Free trial validation/checkin for the same purpose (this may use the same servers/system as subscription validations/checkins; I'm not certain)
  • Telemetry/statistics for threat detections, web blocks and exploits (some or all of these items and other classifications of detections may use separate servers/systems; I'm not certain and only Research and/or someone from the staff would know for certain and I don't know how much detail they would be authorized to provide)
  • Telemetry for customer experience data/usage statistics (if opted in to data collection for this purpose)
  • Built in web links found in various places within the main UI such as the Settings>About tab, the various help links (the ? icons throughout the UI as well as the More Information link found in the Reports tab and the support.malwarebytes.com link found in the built in Quick Tour function); I believe these are dynamically updated from the web so that Malwarebytes doesn't have to publish a new build/new EXEs every time a server/domain/URL/address changes so that the UI may be kept in sync (I know for a fact this was the case with such embedded links/URLs in MBAM 1.75 as well as 2.x; I expect this remains true for 3.x)

That list may not be comprehensive, but I do believe it at least covers most of it.  As to which server/address is for which function(s) I do not know, however I am pretty sure that the cdn. address is used for at least some of the database updates.

I hope that helps to clarify things.  I'll have to leave it to the staff to provide any further information as only they would have detailed knowledge on the specifics/technical info.

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Quite curious about these kinds of things as well, thanks for pursuing getting the information about the connections and sites and overviews of what they are used for. It is always great to have a clear picture of what the software does and what is expected so unusual behavior can be discovered and corrected.

 

Thanks again Guys!

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Mbamservice.exe    [C:\Program Files\Malwarebytes\Anti-malware\Mbamservice.exe] is trying to connect to  TCP port 80 to:

cs9.wac.phicdn.net

crl3.digicert.com

crl4.digicert.com

ocsp.digicert.com

All these sites they do not seem to be related to Malwarebytes; So, are these connections legit or my Malwarebytes is compromised somehow?

Thanks!

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I did some searching and as far as I can tell, those domains seem to be related to SSL validation and digital certificate verification but I couldn't find much beyond that.  I did see one reference to the phicdn domain being related somehow to Windows Updates so these connections may be the result of the Web Protection component being tied into the network stack meaning either they are somehow being used by Malwarebytes to create a secure connection (like for updates etc. for security) or to check files' digital certificates to make certain they're valid (standard procedure for an AV/AM application), or it's actually being initiated by another program on the system (like Windows Update etc.) and is being intercepted/filtered through the Web Protection component which is tied directly into the network stack via WFP, meaning the connections may not actually be from Malwarebytes itself but may appear that way in your firewall due to the way that the Web Protection component functions/is installed.

We'll still have to wait for confirmation from the team obviously, but I just thought you might find this info at least somewhat helpful.

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