Prevx Research Division
WINDIR.EXE
Banking Info StealerFree PC Cleanup from Webroot
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Banking Info Stealer
- Malicious Software
- Worm
File Behavior
WINDIR.EXE has been seen to perform the following behavior:
- Found on infected systems and resists interrogation by security products
- Executes a Process
- This process creates other processes on disk
- Includes file creation code which could be used to test for interception by security products
- The Process is packed and/or encrypted using a software packing process
- Creates a new Background Service on the machine
- Looks at the contents of the autoexec.bat file
- Reads email address and phone book details
- Uses DNS to retrieve the IP address for web sites
- Uses your PC to connect to Chat rooms
- This Process is a file infector which modifies program files to include a copy of the infection
WINDIR.EXE has been the subject of the following behavior:
- Created as a process on disk
- Copied to multiple locations on the system
- Executed as a Process
- Registered as a Dynamic Link Library File
- Created by processes which appear to be checking for interception by security products
- Added as a Registry auto start to load Program on Boot up
Country Of Origin
The filename WINDIR.EXE was first seen on May 5 2008 in the following geographical regions of the Webroot community:
- The United States on May 5 2008
- Spain on Jan 3 2009
- Netherlands on Apr 7 2009
- Europe on Apr 7 2009
- The United Kingdom on Mar 14 2010
File Name Aliases
WINDIR.EXE can also use the following file names:
- WINDIR[1].EXE
- SDRA64.EXE
- WINOPER.EXE
- APLIBDLL.EXE
- INSTALL.EXE
- WINDIR (1).EXE
- 95764991.EXE
- 40643874.EXE
- 64536005.EXE
Filesizes
The following file size has been seen:
- 149,504 bytes
- 147,416 bytes
- 267,776 bytes
- 73,728 bytes
- 271,386 bytes
- 282,624 bytes
- 109,568 bytes
File Type
The filename WINDIR.EXE is used by multiple object types including executable programs,objects.
File Activity
One or more files with the name WINDIR.EXE creates, deletes, copies or moves the following files and folders:
- Creates c:\a.bat
- Creates c:\docume~1\user\locals~1\temp\1.reg
- Deletes c:\docume~1\user\locals~1\temp\1.reg
- Deletes c:\a.bat
- Opens/modifes c:\autoexec.bat
Website Activity
One or more files with the name WINDIR.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:82.146.51.161:6969 Port:17
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