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Application 0xc0000005 Crashes after Intercept X install

After Adding Intercept X to our Endpoints we're getting multiple issue with Applications failing to start with a pop-up Quoting error code 0xc0000005

Eventviewer entry's in the Application Log for the crashes gives me this:

Event ID:1000

Faulting application name: SophosDiag.exe, version: 1.2.76.0, time stamp: 0x589aea74
Faulting module name: ntdll.dll, version: 10.0.14393.479, time stamp: 0x5825887f
Exception code: 0xc0000005
Fault offset: 0x0000000000003c45
Faulting process id: 0x2a88
Faulting application start time: 0x01d2bd9dcaed1fce
Faulting application path: C:\Program Files\Sophos\Endpoint Self Help\SophosDiag.exe
Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll
Report Id: 77acfa35-2cc3-41ba-81b5-b0a365711987
Faulting package full name: 
Faulting package-relative application ID:

We'd attempted fixing with uninstalls and re-installs of the affected applications, Repairs of Windows (trying to fix NTdll.dll), Re-installed .Net components, disabled real time scanning, Runtime protections ect but nothing worked applications still crached.

Uninstalled full Sophos endpoint from a test machine and applications started working. Re-installed the endpoint without Intercept X components and applications still work. Add Intercept to it again and the applications will fail again.

Seen this with: SQLExpress, Powershell ISE, Oloneo Photoengine and even SophosDiag.exe

Endpoints affected as mostly Windows 10 but also seen on Windows 7

Anyone else seeing similar issues?



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  • I have downloaded the same version (trial mode) of the application and I also have the same version of the hmpalert dll loaded as your process.  

    The only difference is (mine loads OK without crashing) I'm running the next version of Windows 10 x64.  I.e. the Creators update.  Are you going to be updating to that soon?  It would be interesting to see if the issue goes away. 

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