Prevx Research Division
8.TMP
Cloaked MalwareFree PC Cleanup from Webroot
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Cloaked Malware
- Malware Dropper
- Malware Downloader
File Behavior
8.TMP has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- Writes to another Process's Virtual Memory (Process Hijacking)
- Can communicate with other computer systems using HTTP protocols
- Executes Processes stored in Temporary Folders
- This process creates other processes on disk
- Executes a Process
- This Process Deletes Other Processes From Disk
- 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
- The Process is polymorphic and can change its structure
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Modifies the Windows Built in Screen Saver
- Registers a Dynamic Link Library File
- Opens browser pop ups
- Visits web sites on your PC without you knowing
- Modifies Windows Initialization And System Settings Used On Start up
- Enables an In Process Object/Server - Common with DLL Injections
8.TMP has been the subject of the following behavior:
- Executed as a Process
- Has code inserted into its Virtual Memory space by other programs
- Terminated as a Process
- Created as a process on disk
- Deleted as a process from disk
- Added as a Registry auto start to load Program on Boot up
- Registered as a Dynamic Link Library File
- Added as a Registry Key (RUNONCE) to auto start Programs on system start up
Country Of Origin
The filename 8.TMP was first seen on Oct 6 2007 in the following geographical regions of the Webroot community:
- Netherlands on Oct 6 2007
- Japan on Apr 16 2008
- Spain on Apr 16 2008
- Hong Kong on Apr 16 2008
- Canada on Apr 30 2008
- Greece on Oct 27 2010
- Turkey on May 5 2012
File Name Aliases
8.TMP can also use the following file names:
- FILE4[1].EXE
- CTFMONA.EXE
- SOFT4[1].EXE
- 1.TMP
- B.TMP
- 9.TMP
- A.TMP
- 2.TMP
- 3.TMP
- 6.TMP
- 16.TMP
- 1555.TMP
- 1575.TMP
- 8BBC.TMP
- 647.TMP
- 38.TMP__DELETE_ON_REBOOT
Filesizes
The following file size has been seen:
- 20,480 bytes
- 16,896 bytes
- 79,872 bytes
- 7,745 bytes
- 299,859 bytes
- 24,576 bytes
- 466,944 bytes
File Type
The filename 8.TMP is used by multiple object types including executable programs,Dynamic Link LIbraries.
File Activity
One or more files with the name 8.TMP creates, deletes, copies or moves the following files and folders:
- Creates c:\windows\system32\ctfmonb.bmp
- Deletes c:\windows\system32\ctfmona.exe
- Creates c:\documents and settings\user\local settings\temp\.tt8
- Deletes c:\documents and settings\user\local settings\temp\.tt8
- Creates c:\windows\system32\blackster.scr
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