Prevx Research Division
"4TDDFWQ1.DLL"
Cloaked MalwareFree PC Cleanup from Webroot
Use Webroot SecureAnywhere to remove 4TDDFWQ1.DLL.
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Cloaked Malware
- Worm
- Malicious Software
- Malware Dropper
File Behavior
4TDDFWQ1.DLL has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- This process creates other processes on disk
- This Process Deletes Other Processes From Disk
- Modifies fixed, removable or USB drives using autorun to execute or spread infection
4TDDFWQ1.DLL has been the subject of the following behavior:
- Created as a process on disk
- Deleted as a process from disk
- Registered as a Dynamic Link Library File
- Executed as a Process
- The process is hooked into all running processes which could allow it to take control of the system or record keyboard input, mouse activity and screen contents
Country Of Origin
The filename 4TDDFWQ1.DLL was first seen on May 22 2009 in the following geographical regions of the Webroot community:
- Spain on May 22 2009
- Japan on May 26 2009
- Singapore on Aug 1 2009
- Europe on Sep 26 2009
- Vietnam on Nov 9 2009
- The United Kingdom on Nov 11 2009
File Name Aliases
4TDDFWQ1.DLL can also use the following file names:
- MERE005U.DLL
- 4TDDFWQ0.DLL
- 15430576.DLL
- 20314764.SVD
- 25787883.SVD
Filesizes
The following file size has been seen:
- 87,040 bytes
- 84,992 bytes
- 72,970 bytes
- 71,871 bytes
- 72,134 bytes
File Type
The filename 4TDDFWQ1.DLL refers to many versions of a dynamic link library.
File Activity
One or more files with the name 4TDDFWQ1.DLL creates, deletes, copies or moves the following files and folders:
- Deletes c:\docume~1\user\locals~1\temp\uu31.rar
- Opens/modifes c:\autoexec.bat
- Creates c:\docume~1\user\locals~1\temp\uu31.rar
- Deletes c:\docume~1\user\locals~1\temp\uu3.exe
- Creates c:\docume~1\user\locals~1\temp\uu3.exe
- Deletes c:\windows\system32\drivers\cdaudio.sys
- Copies file4Æ_CHAR(0x03)_ PÆ_CHAR(0x03)_ tÆ_CHAR(0x03)_ ˜Æ_CHAR(0x03)_ ·ì_CHAR(0x01)_ èÆ_CHAR(0x03)_ _CHAR(0x08)_Ç_CHAR(0x03)_ _CHAR(0x1C)_Ç_CHAR(0x03)_ êÔ ou_CHAR(0x03)_ \dllcache\cdaudio.sys to c:\windows\system32\drivers\cdaudio.sys
- Deletes c:\windows\system32\xvassdf.exe
- Copies filec:\docume~1\user\locals~1\temp\uu3.exe to c:\windows\system32\xvassdf.exe
- Deletes c:\windows\system32\4tddfwq0.dll
- Creates c:\windows\system32\4tddfwq0.dll
- Deletes c:\6.co
- Copies filec:\windows\system32\xvassdf.exe to c:\6.co
- Deletes c:\autorun.in
- Creates c:\autorun.in
- Deletes d:\6.co
- Copies filec:\windows\system32\xvassdf.exe to d:\6.co
- Deletes d:\autorun.in
- Creates d:\autorun.in
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