File Investigation Report
REJOICE082.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
- Malicious Software
- Worm
File Behavior
REJOICE082.EXE has been seen to perform the following behavior:
- The Process is packed and/or encrypted using a software packing process
- Executes a Process
- This process creates other processes on disk
- Violates Windows/Vista Physical Memory Protection allowing it to look inside the data areas of other programs
- Writes to another Process's Virtual Memory (Process Hijacking)
- This Process Deletes Other Processes From Disk
- Can communicate with other computer systems using HTTP protocols
REJOICE082.EXE has been the subject of the following behavior:
- Copied to multiple locations on the system
- Executed as a Process
- Created as a new Background Service on the machine
- Created as a process on disk
- Has code inserted into its Virtual Memory space by other programs
- Deleted as a process from disk
- Terminated as a Process
Country Of Origin
The filename REJOICE082.EXE was first seen on Feb 10 2008 in the following geographical regions of the Prevx community:
- SPAIN on Feb 10 2008
- CHINA on Feb 10 2008
- POLAND on Apr 17 2008
- NETHERLANDS on May 19 2008
- The UNITED KINGDOM on Aug 16 2008
File Name Aliases
REJOICE082.EXE can also use the following file names:
- _REJOICE082.EXE
- 2008_S~1.EXE
- 29604286.SVD
- 23654651.EXE
- 44588738.EXE
- 91439682.DAT
- 72517674.SVD
- 60482844.EXE
- 30799937.DAT
- 68681074.DAT
- 66964491.DAT
- FY[1].EXE
- PATCH.EXE
Filesizes
The following file size has been seen:
- 702,464 bytes
- 628,224 bytes
- 704,512 bytes
- 776,704 bytes
- 704,000 bytes
- 687,616 bytes
- 842,240 bytes
File Type
The filename REJOICE082.EXE refers to many versions of an executable program.
File Activity
One or more files with the name REJOICE082.EXE creates, deletes, copies or moves the following files and folders:
- Creates c:\AutoRun.inf
- Creates d:\AutoRun.inf
- Creates c:\windows\SetupDel.bat
- Copies filec:\windows\rejoice082.exe to c:\windows\system32\_rejoice082.exe
- Deletes c:\windows\SetupDel.ba
Network Activity
One or more files with the name REJOICE082.EXE performs the following network events:
- DNS Lookup sc1862.3322.org
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