File Investigation Report
123.EXE
System Back DoorPC Cleanup in 3 Easy Steps
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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
File Behavior
123.EXE has been seen to perform the following behavior:
- 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
- The Process is packed and/or encrypted using a software packing process
- This Process Contains User Mode Rootkit Functionality and can hide itself from the running process list
- Registers a Dynamic Link Library File
- This process creates other processes on disk
- Executes a Process
- Includes file creation code which could be used to test for interception by security products
- Creates system tray popups, messages, errors and security warnings
- Executes Processes stored in Temporary Folders
- The Process is polymorphic and can change its structure
- Adds new menu items in the Internet Explorer Right Click menu
- Changes the Internet Explorer Search Page
- Creates a Toolbar Extension for Internet Explorer
- Creation and Registration of a Browser Helper Object in Internet Explorer
- Changes to the file command map within the registry
123.EXE has been the subject of the following behavior:
- Added as a Registry auto start to load Program on Boot up
- Created as a process on disk
- Executed as a Process
- Registered as a Dynamic Link Library File
- Copied to multiple locations on the system
- Deleted as a process from disk
- Created by processes which appear to be checking for interception by security products
- Executed by Internet Explorer
- Has code inserted into its Virtual Memory space by other programs
Country Of Origin
The filename 123.EXE was first seen on May 19 2007 in the following geographical regions of the Prevx community:
- SPAIN on May 19 2007
- The UNITED STATES on May 19 2007
- The UNITED KINGDOM on Jun 26 2007
- GERMANY on May 27 2009
File Name Aliases
123.EXE can also use the following file names:
- ALGESTEIYEI.EXE
- FZ8REQTP.EXE
- FLASH_DISINFECTOR.EXE
- FLASH DISINFECTOR.EXE
- 22323HWI.EXE
- 3JZKO4F2.EXE
- 47IK5867.EXE
- 03607214.EXE
- 38331361.EXE
- 83087888.EXE
- 51911734.EXE
Filesizes
The following file size has been seen:
- 434,176 bytes
- 8,192 bytes
- 34,907 bytes
- 64,000 bytes
- 61,740 bytes
- 103,390 bytes
- 383,029 bytes
File Type
The filename 123.EXE is used by multiple object types including objects,executable programs,self extracting compressed files.
File Activity
One or more files with the name 123.EXE creates, deletes, copies or moves the following files and folders:
- Copies filec:\8224184.exe to c:\windows\123.exe
- Creates c:\windows\Deleteme.bat
- Deletes c:\windows\123.dll
- Creates c:\windows\123.dll
- Deletes c:\8224184.ex
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