Prevx Research Division
CL.EXE
System Back DoorFree PC Cleanup from Webroot
Use Webroot SecureAnywhere to remove CL.EXE.
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- System Back Door
- Cloaked Malware
- Malicious Software
- Worm
File Behavior
CL.EXE has been seen to perform the following behavior:
- Executes a Process
- Injects code into other processes
- This process creates other processes on disk
- Uses DNS to retrieve the IP address for web sites
- Uses your PC to connect to Chat rooms
- Writes to another Process's Virtual Memory (Process Hijacking)
- Injects code into other processes
- Adds a Registry Key (RUN) to auto start Programs on system start up
- Adds a Registry Key (RUNONCE) to auto start Programs on system start up
- Adds a Registry Key (SESS) to auto start Programs on system start up
- Found on infected systems and resists interrogation by security products
- Makes outbound connections to other computers using NETBIOSOUT protocols
- Executes Processes stored in Temporary Folders
- Uses rootkit techniques to conceal its presence, interrogation or removal
CL.EXE has been the subject of the following behavior:
- Copied to multiple locations on the system
- Created as a process on disk
- Deleted as a process from disk
- Executed as a Process
- Added as a Registry Key (DXCOM) to auto start Programs on system start up
- Has code inserted into its Virtual Memory space by other programs
- Terminated as a Process
- Added as a Registry auto start to load Program on Boot up
- Executed from Temporary Folders
Country Of Origin
The filename CL.EXE was first seen on May 3 2007 in the following geographical regions of the Webroot community:
- on May 3 2007
- Uruguay on May 3 2007
- Italy on May 14 2007
- The United States on May 14 2007
- Canada on May 17 2007
- Uganda on Sep 9 2009
- Germany on Sep 10 2009
- The United Kingdom on Nov 24 2010
File Name Aliases
CL.EXE can also use the following file names:
- CLEARLOGS.EXE
- CLEARLOGS/CLEARLOGS.EXE
- CLGS.EXE
- CLSLOG.EXE
- LOG.EXE
- SYSCLR.EXE
- CLEARS.EXE
- CL_INCREDIBUILD_INTEROP_1.EXE
- CLK.EXE
- CL(n).EXE
- 88BF262E-C1DD-44D5-BF66-FE60ACB91E5C
- M4|61666918.EXE
- DC7730.EXE
- DC7687.EXE
- 94509205.EXE
- 14870386.EXE
Filesizes
The following file size has been seen:
- 49,152 bytes
- 42,496 bytes
- 41,984 bytes
- 43,520 bytes
- 111,616 bytes
- 28,672 bytes
- 117,504 bytes
File Type
The filename CL.EXE is used by multiple object types including objects,executable programs.
File Activity
One or more files with the name CL.EXE creates, deletes, copies or moves the following files and folders:
- Creates c:\c\settings\dEsKtOp.InI
- Deletes c:\c\settings\cl.exe
Network Activity
One or more files with the name CL.EXE performs the following network events:
- DNS Lookup174.143.212.153 cool.helldark.biz
- DNS Lookup38.97.225.166 cool.ircdevils.net
Website Activity
One or more files with the name CL.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- Port 25 IP:174.143.212.153
- Port 25 IP:38.97.225.166
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