[.02] SBIE 2203 with Crome after upgrade to 4.04

[tomazyk]

OS: Windows 7 Ultimate 64 bit
SBIE: upgraded from 3.76 to 4.04 (64 bit)
Other security programs: ESET Nod32 6.0.316 and EMET 3.0 (software compatibility for both programs is enabled)

The problem started to happen after upgrading from 3.76 to 4.04. I used built-in option to update SBIE.
When I try to download file from internet using sandboxed Chrome I sometimes get mesage: SBIE2203 - Failed to communicate with sandboxie driver. Chrome opens blank "save as" window - I don't see folders to save into - and then the message appears. Sometimes if I wait, "save as" window becomes active again, I can close the message and save the file. Other times I have to close Chrome and try again.

Thank you for help.

[tzuk]

Can you please quote the exact message that you are seeing, including the detail? This may help to diagnose the problem.
There is a COPY MESSAGES TO CLIPBOARD button when Sandboxie displays message so you can copy and paste them here.

[tomazyk]

The exact message is as follows:

"SBIE2203 Failed to communicate with Sandboxie Service: *GUIPROXY_00000001 - chrome.exe [00000102]"

Thank you.

[tzuk]

I've had some reports of this error with Chrome before, and I fixed a few cases that were triggering this error.
And I know a few people are still seeing this error but so far I haven't been able to figure out how to trigger these remaining cases on my end.

Perhaps you can post a Resource Access Monitor log from Sandboxie for Chrome, and that might offer some hint.
The instructions for that are explained here:
http://www.sandboxie.com/index.php?Reso ... essMonitor

Thanks!

[tomazyk]

Here is a log from Resource Access Monitor taken during the problem:

snipped. --tzuk

[tomazyk]

Here are my settings to help you out:

snipped. --tzuk

[tzuk]

Thanks. Unfortunately I don't see anything that looks useful in your log, all the DLLs that your log shows are just standard Chrom and Windows DLLs.

A couple of follow up questions:

1. Please create a new sandbox with default settings and try to run Chrome in this new sandbox. Does it show the same problem?

2. Can you create a precise and very detailed step-by-step of things to do and/or click to show the problem on your end?

[tomazyk]

I have created new sandbox with default settings and have tested it. The problem can be reproduced in new sandbox. I think that the frequency of problem happening in new sandbox is lower than in old one, but I can't be sure.

Here is how I can recreate an error:
1. I start with empty sandbox and run Chrome in it
2. I go to www.sandboxie.com and click on Download link at the top menu.
3. I choose Download from Brothersoft link (other links work too)
4. Brothersoft page loads and when Save As window opens I get the window blank
5. After few seconds I get a message from SBIE



6. When I close the message the Save as window is not responsive. I try to close it and get Windows message:



7. After I close it I get auto-delete confirmation from sandbox for .tmp file:



Sometimes after 4), before 5) explorer window becomes responsive and shows my disk locations and I can save a file (although later I still get SBIE messsage). Twice it happened right after I moved my mouse cursor - but that doesn't always help.

I hope this can help you find the reason for a problem. I can help you with additional testing if needed.

[tomazyk]

I did a liitle more testing and I think I found a reason. It all depends on whether Favorites in Explorer are collapsed or expanded.

I get no errors if I have Favorites folder expanded and get those error as soon as I collapse it. Strange, but I could repeat it many times.

[tzuk]

I'll play with this a bit more but in initial testing it looks like it doesn't matter if I expand/collapse the Favorites folder.

I thought that unchecking the option "Ask where to save each file before downloading" in Chrome could be a workaround for you, right? You can download everything to your Downloads folder and let the Sandboxie Immediate Recovery move the file to the final folder.

[tomazyk]

Yes I have that option turned on. When I come home from work, I will try disabling it and will see if it removes the problem.

BTW my default folder to save downloads and for quick recovery is set to "D:\Prenosi" and not to default Downloads folder. Could this be a problem?

[tzuk]

No, I don't think the choice of folder would make any difference here, but if you say the expanded/collapsed state of the favorites folder makes a difference ... Well then anything is possible!

[tomazyk]

I disabled an option "Ask where to save each file before downloading" in Chrome and problem doesn't occur any more. So problem is solved for me. Thank you for your help.

[tzuk]

I finally found a way to reproduce the problem by turning on "Ask where to save each file before downloading" and then using right-click "Save as" on the web page. This should be fixed in the next beta build I release.

[Greg]

I finally found a way to reproduce the problem by turning on "Ask where to save each file before downloading" and then using right-click "Save as" on the web page. This should be fixed in the next beta build I release.

I am getting the same error and when I go into settings, the "Ask where to save each file before downloading" is not checked. This problem started for me after my computer restarted following a Constant Guard Protection updated. Constant Guard Version 1.13.506.2 Database 723 (from Xfinity). I need to find a way to reverse the update.

Greg