TOPIC TITLE
Defense+ crashes Microsoft VS Debugger
The bug/issue
- What you did: In Visual Studio, I started to debug my ASP.NET MVC Application.
- What actually happened or you actually saw: The debugger did not launch, it crashed due to a page fault caused by guard64.dll.
- What you expected to happen or see: The debugger should launch.
- How you tried to fix it & what happened: Various attempts. Disabling Comodo+/AppInit_DLLs fixed it.
- If its an application compatibility problem have you tried the application fixes here?: It’s not.
- Details & exact version of any application (execpt CIS) involved with download link: MS VS 2010 SP1
- Whether you can make the problem happen again, and if so exact steps to make it happen: Run MS VS 2010 SP1, create a Web Project and start debugging.
- Any other information (eg your guess regarding the cause, with reasons):
My Visual Studio failed to start the debugger for some days with a pretty generic error.
After trying out suggestions to fix this on the internet I decided to go through the whole stack.
And apparently, I see that msvsmon.exe suddenly crashes due to a page fault.
Before that point, there were a lot of guard64.sys related calls, which is your appinit dll hook.
Disabling Defense+ and emptying the appinit_dlls in the registry solved that problem.
But now I don’t have Defense+, can you fix this for me or I can exclude msvsmon.exe?
Files appended. (Please zip unless screenshots).
- Screenshots illustrating the bug: Not necessary.
- Screenshots of related CIS event logs and the Defense+ Active Processes List: None found.
- A CIS config report or file: Not related to this issue.
- Crash or freeze dump file: None, the debugger just quits. And my trace isn’t detailed enough, i.e. it doesn’t contain addresses nor parameters for guard64.dll calls…
Your set-up
- CIS version, AV database version & configuration used: 5.4.189068.1354
- a) Have you updated (without uninstall) from CIS 3 or 4: No.
b) if so, have you tried a clean reinstall (without losing settings - if not please do)?: - a) Have you imported a config from a previous version of CIS: No.
b) if so, have U tried a standard config (without losing settings - if not please do)?: - Have you made any other major changes to the default config? (eg ticked ‘block all unknown requests’, other egs here.): No.
- Defense+, Sandbox, Firewall & AV security levels: D+= Safe , Sandbox= Safe, Firewall = Safe, AV = Safe
- OS version, service pack, number of bits, UAC setting, & account type: Windows 7 Pro SP1 x64, UAC on, Admin
- Other security and utility software installed: Micosoft Security Essentials, unrelated to this issue.
- Virtual machine used (Please do NOT use Virtual box): No.