Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'IMJDC1' = 'yyu45stream'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'eedaede255435bc5c5c4' = '<Full path to virus>'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'yyu45stream' = '%APPDATA%\vcomp.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunOnce] 'IMJDC0' = '<Full path to virus>'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\vcompress.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Injects code into
the following system processes:
- %WINDIR%\Explorer.EXE
Modifies file system :
Creates the following files:
- %HOMEPATH%\My Documents\Downloads\Outlook Express.exe
- %HOMEPATH%\My Documents\Downloads\Reference Assemblies.exe
- %HOMEPATH%\My Documents\Downloads\Uninstall Information.exe
- %HOMEPATH%\My Documents\Downloads\MSN Gaming Zone.exe
- %HOMEPATH%\My Documents\Downloads\NetMeeting.exe
- %HOMEPATH%\My Documents\Downloads\Online Services.exe
- %HOMEPATH%\My Documents\Downloads\xerox.exe
- %TEMP%\dw.log
- %TEMP%\2E044.dmp
- %HOMEPATH%\My Documents\Downloads\Windows Media Player.exe
- %HOMEPATH%\My Documents\Downloads\Windows NT.exe
- %HOMEPATH%\My Documents\Downloads\WindowsUpdate.exe
- %HOMEPATH%\My Documents\Downloads\MSN.exe
- %HOMEPATH%\My Documents\Downloads\Common Files.exe
- %HOMEPATH%\My Documents\Downloads\ComPlus Applications.exe
- %HOMEPATH%\My Documents\Downloads\FireFox.exe
- %TEMP%\dum1.tmp
- C:\vcompress.exe
- C:\autorun.inf
- %HOMEPATH%\My Documents\Downloads\Microsoft.NET.exe
- %HOMEPATH%\My Documents\Downloads\Movie Maker.exe
- %HOMEPATH%\My Documents\Downloads\MSBuild.exe
- %HOMEPATH%\My Documents\Downloads\Internet Explorer.exe
- %HOMEPATH%\My Documents\Downloads\Messenger.exe
- %HOMEPATH%\My Documents\Downloads\microsoft frontpage.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\vcompress.exe
- C:\autorun.inf
- C:\vcompress.exe
Network activity:
Connects to:
- 'ap#.##rangled.net':9372
UDP:
- DNS ASK ap#.##rangled.net
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
- ClassName: 'Indicator' WindowName: '(null)'