Prevx Research Division
PS.EXE
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Associated Malware Groups
The unsafe files using this name are associated with the malware groups:
- Rootkit
- Cloaked Malware
- Worm
- Malicious Software
File Behavior
PS.EXE has been seen to perform the following behavior:
- Adds a Registry Key (RUN) to auto start Programs on system start up
- This process creates other processes on disk
- Writes to another Process's Virtual Memory (Process Hijacking)
- Executes a Process
- This Process Deletes Other Processes From Disk
- Injects code into other processes
- Copies files
- The Process is packed and/or encrypted using a software packing process
- Registers a Dynamic Link Library File
- This Process is a file infector which modifies program files to include a copy of the infection
- Creates a new Background Service on the machine
- Found on infected systems and resists interrogation by security products
- Can communicate with other computer systems using HTTP protocols
- Downloads program file(s) and other content from the web
- Performs DNS look ups to resolve URL IP addresses
PS.EXE has been the subject of the following behavior:
- Executed as a Process
- Added as a Registry auto start to load Program on Boot up
- Created as a process on disk
- Has code inserted into its Virtual Memory space by other programs
- Copied to multiple locations on the system
- Terminated as a Process
- Deleted as a process from disk
- Registered as a Dynamic Link Library File
Country Of Origin
The filename PS.EXE was first seen on May 20 2007 in the following geographical regions of the Webroot community:
- The United States on May 20 2007
- Europe on Oct 14 2007
- on Aug 23 2008
- Spain on May 4 2009
- Turkey on Dec 8 2009
- The United Kingdom on Aug 14 2010
File Name Aliases
PS.EXE can also use the following file names:
- WINUDPMGR.EXE
- FLY[1].JPG
- EINUDPMGR.EXE
- HIDETOOLZ.EXE
- b9bbe781afe78987e7a88be5ba8fL5.EXE
- b880e994aee588b7e69eaaL5.EXE
- INSTALL.EXE
- SETUP.EXE
- YJSQ.EXE
- QQ密码破解器.EXE
- 刷图不掉线.EXE
- CS吸怪-全屏+飞天+无敌.EXE
- CF无极辅助.EXE
- CSOL白金辅助.EXE
- CSOLˢǹ.EXE
- 乐活生成器.EXE
- NSUUXMD.TMP
- XXPUUVS.TMP
- HLDRRR.EXE
- GOOGLE_CO_UK[1].HTM
- PS[1].EXE
- ST.EXE
- CS.EXE
- MI1.EXE
- 图.EXE
- PS_001.EXE
- PS (1).EXE
- 10331812.EXE
- 10034915.DAT
Filesizes
The following file size has been seen:
- 156,039 bytes
- 188,416 bytes
- 148,992 bytes
- 485,937 bytes
- 185,856 bytes
- 90,112 bytes
- 77,824 bytes
- 273,920 bytes
File Type
The filename PS.EXE refers to many versions of an executable program.
File Activity
One or more files with the name PS.EXE creates, deletes, copies or moves the following files and folders:
- Creates c:\windows\system32\msgsvc.dll
- Creates c:\windows\system32\dllcache\msgsvc.dll
- Deletes c:\windows\temp\scsA.tmp
- Deletes c:\windows\temp\scsF.tmp
- Deletes c:\windows\temp\scs9.tmp
- Deletes c:\windows\temp\scsD.tmp
- Opens/modifes c:\autoexec.bat
- Creates c:\notpad.bat
- Deletes c:\notpad.ex
- Deletes c:\notpad.bat
Website Activity
One or more files with the name PS.EXE interacts with the following web sites and pages. Web addresses have been deliberately modified to prevent unintentional use.
- TCP:127.0.0.1:1087 Port:16
- Port 80 IP:218.6.19.103
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