Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Classes\comfile\shell\open\command] '' = '"<SYSTEM32>\pencaria\SMSS.EXE" "%1" %*'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\Taskmgr.exe] 'Debugger' = '<SYSTEM32>\calc.exe'
- [<HKLM>\SOFTWARE\Classes\batfile\shell\open\command] '' = '"<SYSTEM32>\pencaria\SMSS.EXE" "%1" %*'
- [<HKLM>\SOFTWARE\Classes\piffile\shell\open\command] '' = '"<SYSTEM32>\pencaria\SMSS.EXE" "%1" %*'
- [<HKLM>\SOFTWARE\Classes\lnkfile\shell\open\command] '' = '"<SYSTEM32>\pencaria\SMSS.EXE" "%1" %*'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'System' = 'Explorer.exe "<SYSTEM32>\pencaria\services.exe"'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\pencaria\Lsass.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'jauhs' = 'Notepad.exe C:\pulasi.txt'
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\regedit.exe] 'Debugger' = '<SYSTEM32>\conime.exe'
- [<HKLM>\SOFTWARE\Classes\VBSFile\Shell\Open\Command] '' = '"<SYSTEM32>\pencaria\SMSS.EXE" "%1" %*'
Infects the following executable system files:
- <SYSTEM32>\userinit.exe
Creates the following files on removable media:
- <Drive name for removable media>:\AUTORUN.INF
- <Drive name for removable media>:\adalah\dapat.exe
- <Drive name for removable media>:\Documents.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
- file extensions
Terminates or attempts to terminate
the following user processes:
- MCAGENT.EXE
- nod32.exe
- bdagent.exe
- ashAvast.exe
- avgcc.exe
Modifies settings of Windows Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoShellSearchButton' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFind' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoDrives' = ''
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
- C:\adalah\dapat.exe
- C:\Documents.exe
- C:\pulasi.txt
- %ALLUSERSPROFILE%\Documents\Documents.exe
- C:\Documents and Settings\Default User\Templates\winword2.doc.exe
- C:\Documents and Settings\Default User\Templates\winword.doc.exe
- C:\AUTORUN.INF
- <SYSTEM32>\Sedihmu.inf
- <SYSTEM32>\pencaria\csrss.exe
- <SYSTEM32>\pencaria\services.exe
- <SYSTEM32>\pencaria\SMSS.EXE
- %WINDIR%\system\userinit.exe
- %WINDIR%\system\gpedit.msc
- <SYSTEM32>\pencaria\Lsass.exe
Sets the 'hidden' attribute to the following files:
- C:\AUTORUN.INF
- <Drive name for removable media>:\AUTORUN.INF
- C:\pulasi.txt
- <SYSTEM32>\pencaria\SMSS.EXE
- <SYSTEM32>\pencaria\csrss.exe
Deletes the following files:
- <SYSTEM32>\gpedit.msc
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: 'Local Settings'
- ClassName: 'ExploreWClass' WindowName: ''
- ClassName: 'CabinetWClass' WindowName: ''
- ClassName: 'RegEdit_RegEdit' WindowName: ''
- ClassName: '' WindowName: 'Registry Editor'
- ClassName: '' WindowName: 'Folder Options'
