Prevx Research Division
CTFXMON.DLL
Malicious SoftwareFree PC Cleanup from Webroot
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Associated Malware Groups
The filename is associated with the malware group:
- Malicious Software
File Behavior
CTFXMON.DLL has been seen to perform the following behavior:
- Found on infected systems and resists interrogation by security products
- Downloads hidden code from covert web sites
- This process creates other processes on disk
- This Process is a file infector which modifies program files to include a copy of the infection
- Looks at the contents of the autoexec.bat file
- Reads email address and phone book details
- Opens browser pop ups
- Runs Javascript code
- Uses DNS to retrieve the IP address for web sites
- Uses rootkit techniques to conceal its presence, interrogation or removal
CTFXMON.DLL has been the subject of the following behavior:
- Executed as a Process
- Registered as a Dynamic Link Library File
- Created as a process on disk
Country Of Origin
The filename CTFXMON.DLL was first seen on Dec 3 2008 in the following geographical regions of the Webroot community:
- Italy on Dec 3 2008
- Argentina on Dec 3 2008
- Spain on Jan 21 2009
- Uruguay on May 21 2009
- Japan on Sep 14 2010
File Name Aliases
CTFXMON.DLL can also use the following file names:
- 01C94E22DB730E58_CTFXMON_DLL.PE
- 01C94F4009F4D9B4_CTFXMON_DLL.PE
- 01C950BC09709D3E_CTFXMON_DLL.PE
Filesizes
The following file size has been seen:
- 249,856 bytes
- 188,416 bytes
- 192,512 bytes
File Type
The filename CTFXMON.DLL refers to many versions of a dynamic link library.
File Activity
One or more files with the name CTFXMON.DLL creates, deletes, copies or moves the following files and folders:
- Creates c:\windows\system32\14242898341.dll
- Opens/modifes c:\autoexec.bat
- Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\2lcwzf76\error[1
- Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\67acpgmg\error[1]
- Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\4cvefhyb\warning[1]
- Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\67acpgmg\error[2]
- Creates c:\documents and settings\user\local settings\temporary internet files\content.ie5\67acpgmg\warning[1]
Network Activity
One or more files with the name CTFXMON.DLL performs the following network events:
- DNS Lookup66.197.149.21 66.197.149.21
Website Activity
One or more files with the name CTFXMON.DLL interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1071 Port:20
- Port 80 IP:66.197.149.21
- Port 80 IP:64.111.196.122
- Port 80 IP:64.111.196.117
- Port 80 IP:76.9.16.154
- Port 80 IP:66.45.56.108
- Port 80 IP:88.221.26.210
- Port 80 IP:198.87.233.14
- Port 80 IP:88.221.26.33
- Port 80 IP:88.221.26.16
- Port 80 IP:88.221.26.75
- Port 80 IP:216.178.33.42
- Port 80 IP:92.123.128.28
- Port 80 IP:88.221.26.64
- Port 80 IP:82.199.80.141
- Port 80 IP:216.178.38.123
- Port 80 IP:88.221.26.208
- Port 80 IP:72.47.216.69
- Port 80 IP:209.85.227.101
- Port 80 IP:88.221.26.202
- Port 80 IP:88.221.26.200
- Port 80 IP:88.221.26.209
- Port 80 IP:88.221.26.201
- Port 80 IP:199.93.42.125
- Port 80 IP:216.178.38.114
- Port 80 IP:209.17.73.8
- Port 80 IP:209.17.69.8
- Port 80 IP:91.121.114.191
- Port 80 IP:208.94.2.33
- Port 80 IP:62.41.85.88
- Port 80 IP:87.248.211.157
- Port 80 IP:216.178.33.51
- Port 80 IP:63.135.80.58
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