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| Security and Windows Vista A forum for discussion on security issues with Windows Vista. (microsoft.public.windows.vista.security) |
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February 24th 09, 06:10 PM
posted to microsoft.public.windows.vista.security
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F-secure and junction points
Hi! I've got a problem with F-secure Client security and Vista junction points named application data. The virus scan gets stuck in these recursive folder structures or the scan takes ~6h. The folder is: \\?\C:\Users\All Users\Application Data\ where Application data appears 14 times. I've understood that this might be a problem with a particular anti-virus software but at F-secure they did not know about this problem. So, has anyone stumbled on this problem with F-sec or another anti-virus prog. and what has been your solution? Furthermore, what is a correct number of recursive folders in this path? I'm thinking that there might be a program in my computer creating too many of these loops. Any help is greatly appreciated! WR, Mervi -- Mervita 
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February 24th 09, 08:02 PM
posted to microsoft.public.windows.vista.security
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F-secure and junction points
Mervita,
If there are 14 different Application Data subfolders at C:\Users\All Users then there may be some sort of file corruption going on. Configure F-secure to not scan the folder since nothing can be 'stored' there anyway and see if that restores the one subfolder that should be there MowGreen [MVP 2003-2009] =============== *-343-* FDNY Never Forgotten =============== Mervita wrote: Hi! I've got a problem with F-secure Client security and Vista junction points named application data. The virus scan gets stuck in these recursive folder structures or the scan takes ~6h. The folder is: \\?\C:\Users\All Users\Application Data\ where Application data appears 14 times. I've understood that this might be a problem with a particular anti-virus software but at F-secure they did not know about this problem. So, has anyone stumbled on this problem with F-sec or another anti-virus prog. and what has been your solution? Furthermore, what is a correct number of recursive folders in this path? I'm thinking that there might be a program in my computer creating too many of these loops. Any help is greatly appreciated! WR, Mervi
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February 25th 09, 04:41 AM
posted to microsoft.public.windows.vista.security
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F-secure and junction points
I am not sure I understand what you mean by "recursive folders" but the
maximum size of a "path" is 260 (with some exceptions). In this context, a path includes the filename. The following might be too technical for you but it does provide all the details. File Names, Paths, and Namespaces http://msdn.microsoft.com/en-us/libr...um_path_length "Mervita" wrote in message ... Furthermore, what is a correct number of recursive folders in this path? I'm thinking that there might be a program in my computer creating too many of these loops.
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February 27th 09, 07:19 PM
posted to microsoft.public.windows.vista.security
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F-secure and junction points
"Mervita" wrote in message
... Hi! I've got a problem with F-secure Client security and Vista junction points named application data. The virus scan gets stuck in these recursive folder structures or the scan takes ~6h. The folder is: \\?\C:\Users\All Users\Application Data\ where Application data appears 14 times. I've understood that this might be a problem with a particular anti-virus software but at F-secure they did not know about this problem. So, has anyone stumbled on this problem with F-sec or another anti-virus prog. and what has been your solution? Furthermore, what is a correct number of recursive folders in this path? I'm thinking that there might be a program in my computer creating too many of these loops. Any help is greatly appreciated! WR, Mervi F-secure has a bug. If you look at C:\ProgramData it contains a junction called Application Data which points to C:\ProgramData itself. [see it: run cmd.exe - dir C:\Users /AL]. By itself this forms a loop. Since all roads to the "All Users" folder actually lead to C:\ProgramData (e.g. taking C:\Documents and Settings\All Users or C:\Users\All Users routes), applications that enumerate through this space will encounter the loop. In this case F-secure enumerates C:\Users\All Users and finds Application Data which it treats as a regular folder so recurses inside and continues enumerating. This brings it back to where it just was and eventually sees Application Data *again* and recurses inside... Vista adds security to deny everyone the ability to list folder/read data from most of the standard junctions - including Application Data. F-secure is not honouring them. So there's two ways that F-secure could be fixed to prevent this problem - ignore junctions themselves or honour the security permissions on the junction itself. Sincerely, Adrian Accinelli
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