Prevx Research Division
CODEC.EXE
Malware DownloaderFree PC Cleanup from Webroot
Use Webroot SecureAnywhere to remove CODEC.EXE.
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Malware Downloader
- Malware Dropper
- Worm
File Behavior
CODEC.EXE has been seen to perform the following behavior:
- Executes a Process
- Creates new folders on the system
- This process creates other processes on disk
- Injects code into other processes
- Disables safe mode on your PC
- Performs DNS look ups to resolve URL IP addresses
- The Process is packed and/or encrypted using a software packing process
- Writes to another Process's Virtual Memory (Process Hijacking)
- This Process Deletes Other Processes From Disk
- Copies files
- Creates system tray popups, messages, errors and security warnings
- Creates new folders in the file system
- Enables an In Process Object/Server - Common with DLL Injections
- Visits web sites on your PC without you knowing
- Registers a Dynamic Link Library File
- Can communicate with other computer systems using HTTP protocols
CODEC.EXE has been the subject of the following behavior:
- Executed as a Process
- Created as a process on disk
- Executed from Temporary Folders
- Has code inserted into its Virtual Memory space by other programs
- Copied to multiple locations on the system
- Created by processes which appear to be checking for interception by security products
- Deleted as a process from disk
- Executed by Internet Explorer
- Terminated as a Process
Country Of Origin
The filename CODEC.EXE was first seen on Jun 4 2007 in the following geographical regions of the Webroot community:
- Europe on Jun 4 2007
- Italy on Jun 4 2007
- Spain on Oct 14 2007
- The United States on Jun 29 2008
- Canada on Jun 29 2008
- Brazil on Mar 18 2009
- Malaysia on Dec 24 2009
- The United Kingdom on Dec 24 2009
- South Africa on May 22 2012
File Name Aliases
CODEC.EXE can also use the following file name:
- CODEC11.EXE
- CODEC31.EXE
- CODEC532.EXE
- CODEC543.EXE
- CODEC.EXE.BAD
- CODEC_008.EXE
- WEXE.EXE
- WORLD-WORLD (1).EXE
- WORLD-WORLD.EXE
- DOWNLOAD135.EXE
- DOWNLOAD136.EXE
- DOWNLOAD137.EXE
- DOWNLOAD138.EXE
- DOWNLOAD139.EXE
- DOWNLOAD14.EXE
- DOWNLOAD140.EXE
- DOWNLOAD141.EXE
- DOWNLOAD142.EXE
- DOWNLOAD143.EXE
- DOWNLOAD144.EXE
- DOWNLOAD146.EXE
- DOWNLOAD145.EXE
- DOWNLOAD147.EXE
- DOWNLOAD148.EXE
- DOWNLOAD149.EXE
- DOWNLOAD15.EXE
- DOWNLOAD150.EXE
- DOWNLOAD151.EXE
- DOWNLOAD152.EXE
- DOWNLOAD153.EXE
- DOWNLOAD154.EXE
- DOWNLOAD155.EXE
- DOWNLOAD156.EXE
- DOWNLOAD157.EXE
- DOWNLOAD158.EXE
- DOWNLOAD159.EXE
- DOWNLOAD16.EXE
- DOWNLOAD160.EXE
- DOWNLOAD161.EXE
- DOWNLOAD162.EXE
- DOWNLOAD163.EXE
- DOWNLOAD164.EXE
- DOWNLOAD165.EXE
- DOWNLOAD166.EXE
- DOWNLOAD167.EXE
- DOWNLOAD168.EXE
- DOWNLOAD169.EXE
- DOWNLOAD17.EXE
- DOWNLOAD170.EXE
- DOWNLOAD171.EXE
- DOWNLOAD172.EXE
- DOWNLOAD174.EXE
- DOWNLOAD173.EXE
- DOWNLOAD175.EXE
- DOWNLOAD176.EXE
- DOWNLOAD177.EXE
- DOWNLOAD178.EXE
- DOWNLOAD179.EXE
- DOWNLOAD180.EXE
- DOWNLOAD18.EXE
- DOWNLOAD181.EXE
- DOWNLOAD182.EXE
- DOWNLOAD183.EXE
- DOWNLOAD184.EXE
- DOWNLOAD185.EXE
- DOWNLOAD186.EXE
- DOWNLOAD187.EXE
- DOWNLOAD188.EXE
- DOWNLOAD189.EXE
- DOWNLOAD19.EXE
- DOWNLOAD191.EXE
- DOWNLOAD190.EXE
- DOWNLOAD192.EXE
- DOWNLOAD193.EXE
- DOWNLOAD194.EXE
- DOWNLOAD195.EXE
- DOWNLOAD196.EXE
- DOWNLOAD197.EXE
- DOWNLOAD198.EXE
- DOWNLOAD199.EXE
- DOWNLOAD20.EXE
- DOWNLOAD201.EXE
- DOWNLOAD200.EXE
- DOWNLOAD202.EXE
- DOWNLOAD203.EXE
- DOWNLOAD204.EXE
- DOWNLOAD205.EXE
- DOWNLOAD206.EXE
- DOWNLOAD207.EXE
- DOWNLOAD208.EXE
- DOWNLOAD209.EXE
- DOWNLOAD21.EXE
- DOWNLOAD210.EXE
- DOWNLOAD211.EXE
- DOWNLOAD212.EXE
- DIVX.EXE
- DIVX PRO 5.05 CORPORATE EDITION DOLBY AC3.EXE
- CODEC[n].EXE
- DOWNLOAD[n].EXE
- E-BOOK[n].EXE
- C2COSF3I.EXE
- EKXEVBSZ.EXE
- DCGK401B.EXE
- AWE5H2AI.EXE
- SM5TGRXC.EXE
- KF08NLL6.EXE
- DLER.EXE
- 8C8A.TMP
- 1178.TMP
- 63895617.DAT
- 13703545.EXE
- 22159411.DAT
- 74852956.DAT
Filesizes
The following file size has been seen:
- 69,123 bytes
- 41,344 bytes
- 71,680 bytes
- 918,016 bytes
- 37,380 bytes
- 38,400 bytes
- 5,494,023 bytes
- 9,814 bytes
File Type
The filename CODEC.EXE is used by multiple object types including executable programs,self extracting compressed files.
File Activity
One or more files with the name CODEC.EXE creates, deletes, copies or moves the following files and folders:
- Opens/modifes c:\autoexec.bat
- Creates c:\82.bat
- Creates c:\winlogon.exe
- Creates c:\windows\system32\opnmLdda.dll
- Creates c:\docume~1\user\locals~1\temp\removalfile.bat
- Deletes c:\services.exe
- create folder C:\WINDOWS\system32\modtrux05
- Deletes c:\docume~1\user\locals~1\temp\nswE.tmp
- Creates c:\windows\system32\MSINET.DEP
- Creates c:\windows\system32\MSINET.oca
- Creates c:\windows\system32\MSINET.OCX
- Creates c:\windows\system32\pac.txt
- Creates c:\windows\system32\modtrux05\modtrux051080.exe
- Creates c:\windows\17PHolmes1188.exe
- Creates c:\docume~1\user\locals~1\temp\cq.bat
- Creates c:\temp\syschk3\tdirp5.log
- Deletes c:\temp\bpwas3.exe
- Deletes c:\csrss.exe
- Deletes c:\docume~1\user\locals~1\temp\cq.bat
- create folder C:\WINDOWS\system32\rev2
- create folder C:\WINDOWS\system32\xp3
- create folder C:\WINDOWS\system32\mb9
- Deletes c:\docume~1\user\locals~1\temp\nsw1F.tmp
- Creates c:\windows\system32\rev2\wesamdir.exe
- Creates c:\windows\system32\xp3\dvsid140.exe
- Creates c:\windows\system32\mb9\dragGLL1.exe
- Creates c:\temp\1cb\syscheck.log
- Creates c:\docume~1\user\locals~1\temp\cmdinst.exe
- Creates c:\windows\system32\msnav32.ax
- Creates c:\documents and settings\user\start menu\programs\startup\DW_Start.lnk
- Deletes c:\smss.exe
- Deletes c:\winlogon.exe
- Deletes c:\82.ba
Website Activity
One or more files with the name CODEC.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- Port 80 IP:80.109.240.72
- ksn .a1188 .wrs .mcboo .com / 17PHolmes .cmt
- Port 80 IP:206.251.244.226
- 64 .225 .158 .71 / reporting / IpGeo .asp
- 64 .225 .158 .71 / locwnil / bpwas3 .ex
- 64 .225 .158 .71 / modtrux051080 / ?code=BundleBase1 .108
- TCP:127.0.0.1:1094 Port:17
- Port 80 IP:64.225.158.71
- command .adservs .com / binaries / installer .php?a=MTE5MTA6ODoxNg
- Port 80 IP:81.22.32.114
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