APPSYNC.EXE

Currently being reviewed

The filename APPSYNC.EXE is used by objects that are classified as safe. It has not yet been seen to be associated with malicious software.

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File Behavior

APPSYNC.EXE has been seen to perform the following behavior:

Writes to another Process's Virtual Memory (Process Hijacking)
Creates new folders in the file system
Includes file creation code which could be used to test for interception by security products
Found on infected systems and resists interrogation by security products
Uses low level functions to hide itself from the user and from system/security processes

APPSYNC.EXE has been the subject of the following behavior:

Created as a process on disk
Deleted as a process from disk
Added as a Registry auto start to load Program on Boot up
Has code inserted into its Virtual Memory space by other programs
Executed as a Process
Created by processes which appear to be checking for interception by security products

Country Of Origin

The filename APPSYNC.EXE was first seen on Feb 16 2008 in the following geographical regions of the Webroot community:

Netherlands on Feb 16 2008
Indonesia on Jul 6 2008
Sweden on Dec 15 2008
Spain on Dec 15 2008
Europe on Jun 19 2009
Philippines on Jan 3 2012

File Name Aliases

APPSYNC.EXE can also use the following file names:

VMWARE THINAPP/APPSYNC.EXE
VMWARE THINAPP V4.0.0.200 PORTABLE/APPSYNC.EXE
17243613.EXE
66610805.EXE

Filesizes

The following file size has been seen:

565,248 bytes
90,181 bytes
274,432 bytes
86,016 bytes
123,392 bytes

File Type

The filename APPSYNC.EXE refers to many versions of an executable program.

File Activity

One or more files with the name APPSYNC.EXE creates, deletes, copies or moves the following files and folders:

Creates c:\documents and settings\user\application data\microsoft\clr security config\v1.1.4322\security.co
Moves c:\documents and settings\user\application data\microsoft\clr security config\v1.1.4322\security.con to c:\documents and settings\user\application data\microsoft\clr security config\v1.1.4322\security.con
Creates c:\windows\microsoft.net\framework\v1.1.4322\config\security.con
Deletes c:\windows\microsoft.net\framework\v1.1.4322\config\security.co
Moves c:\windows\microsoft.net\framework\v1.1.4322\config\security.con to c:\windows\microsoft.net\framework\v1.1.4322\config\security.con
Creates c:\documents and settings\user\application data\microsoft\clr security config\v1.1.4322\security.con
Deletes c:\documents and settings\user\application data\microsoft\clr security config\v1.1.4322\security.co
Creates c:\windows\microsoft.net\framework\v1.1.4322\config\enterprisesec.con
Deletes c:\windows\microsoft.net\framework\v1.1.4322\config\enterprisesec.co
Moves c:\windows\microsoft.net\framework\v1.1.4322\config\enterprisesec.con to c:\windows\microsoft.net\framework\v1.1.4322\config\enterprisesec.con

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