Prevx Research Division
33.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
- Virus
- Malicious Software
File Behavior
33.TMP has been seen to perform the following behavior:
- Found on infected systems and resists interrogation by security products
- Disables the built in Windows File Protection System
- Writes to another Process's Virtual Memory (Process Hijacking)
- Uses low level functions to hide itself from the user and from system/security processes
- Uses rootkit techniques to conceal its presence, interrogation or removal
- The Process is packed and/or encrypted using a software packing process
- The Process is polymorphic and can change its structure
- Executes a Process
- This Process is a file infector which modifies program files to include a copy of the infection
- Creates a new Background Service on the machine
- Drops known malicious software during execution
- This process creates other processes on disk
- This Process Deletes Other Processes From Disk
- Injects code into other processes
- Creates new folders in the file system
- Looks at the contents of the autoexec.bat file
- Reads email address and phone book details
33.TMP has been the subject of the following behavior:
- Executed as a Process
- Has code inserted into its Virtual Memory space by other programs
- Registered as a Dynamic Link Library File
- Created as a process on disk
- Copied to multiple locations on the system
Country Of Origin
The filename 33.TMP was first seen on Feb 4 2008 in the following geographical regions of the Webroot community:
- Korea, Republic of on Feb 4 2008
- on Apr 14 2008
- Spain on Apr 14 2008
- Philippines on Nov 5 2009
- Germany on Feb 1 2010
- The United States on Feb 1 2010
- Argentina on Nov 26 2010
- India on Nov 26 2010
File Name Aliases
33.TMP can also use the following file names:
- NDA_PD_CW300[n].EXE
- NDA_PD_CW300.EXE
- NDA_PD_CW300[1].EXE
- C.TMP
- A.TMP
- 11.TMP
- A3.TMP
- 3C.TMP
- 42.TMP
- 45.TMP
- 88.TMP
- 39.TMP
- 689.TMP.TMP
- 109.TMP
- 33.TMP-VIR
- 0.21338855996327755.EXE
- 2B8E.TMP
Filesizes
The following file size has been seen:
- 115,712 bytes
- 46,574 bytes
- 1,943,495 bytes
- 68,100 bytes
- 69,632 bytes
- 20,480 bytes
- 78,336 bytes
- 44,544 bytes
File Type
The filename 33.TMP is used by multiple object types including executable programs,Dynamic Link LIbraries.
File Activity
One or more files with the name 33.TMP creates, deletes, copies or moves the following files and folders:
- Deletes c:\windows\system32\ntos.exe
- create folder C:\WINDOWS\system32\wsnpoem
- Opens/modifes c:\autoexec.bat
- Creates c:\windows\system32\wsnpoem\video.dll
- Deletes c:\windows\system32\wsnpoem\video.dll
- Moves c:\windows\system32\wsnpoem\video.dll to c:\windows\system32\wsnpoem\video.dll
- Creates c:\windows\temp\27.tmp
Website Activity
One or more files with the name 33.TMP interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- Port 80 IP:58.22.101.109
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