Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'M7drbzHMZ31uzFfF821Ps1GJFFMWXQadt9r0jLvKmRPPMffe1S/B5TGsJoeip2Ok' = '%ALLUSERSPROFILE%\Start Menu\Programs\Startup\M7drbzHMZ31uzFfF821Ps1GJFFMWXQadt9r0jLvKmRPPMffe1S/B5TGsJoeip2Ok'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '\Emsisoft Anti-Malware Beta 1.exe' = '%WINDIR%\\Emsisoft Anti-Malware Beta 1.exe'
Creates or modifies the following files:
- %ALLUSERSPROFILE%\Start Menu\Programs\Startup\M7drbzHMZ31uzFfF821Ps1GJFFMWXQadt9r0jLvKmRPPMffe1S\B5TGsJoeip2Ok
Creates the following files on removable media:
- <Drive name for removable media>:\Autorun.inf
- <Drive name for removable media>:\M7drbzHMZ31uzFfF821Ps1GJFFMWXQadt9r0jLvKmRPPMffe1S\B5TGsJoeip2Ok
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- file extensions
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
Creates and executes the following:
- %WINDIR%\Emsisoft Anti-Malware Beta 1.exe
Executes the following:
- <SYSTEM32>\reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v NoDesktop /t REG_DWORD /d 1 /f
- <SYSTEM32>\reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoDesktop /t REG_DWORD /d 1 /f
- <SYSTEM32>\reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
- <SYSTEM32>\net1.exe user admin * /RANDOM
- <SYSTEM32>\net1.exe user %username% * /RANDOM
- <SYSTEM32>\reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v HideFileExt /t REG_DWORD /d 1 /f
- <SYSTEM32>\reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoRun /t REG_DWORD /d 1 /f
- <SYSTEM32>\reg.exe add HKEY_LOCAL_MACHINE\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v noclose /t REG_DWORD /d 1 /f
- <SYSTEM32>\reg.exe add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoControlPanel /t REG_DWORD /d 1 /f
- <SYSTEM32>\reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
- <SYSTEM32>\reg.exe add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoFolderOptions /t REG_DWORD /d 1 /f
- <SYSTEM32>\reg.exe add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v NoControlPanel /t REG_DWORD /d 1 /f
- <SYSTEM32>\reg.exe add HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer /v noclose /t REG_DWORD /d 1 /f
Terminates or attempts to terminate
the following user processes:
- opera.exe
- firefox.exe
- chrome.exe
Modifies settings of Windows Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoFolderOptions' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoRun' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoDesktop' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NoControlPanel' = '00000001'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'NoControlPanel' = '00000001'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer] 'noclose' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'noclose' = '00000001'
Modifies file system :
Creates the following files:
- C:\Autorun.inf
- C:\iD3WYeya1c+NtrBUqxvkwG8AmCoDeU4RaHTAXNXkEd6Qusj0Hmb8vA==
- %WINDIR%\Emsisoft Anti-Malware Beta 1.exe
- C:\M7drbzHMZ31uzFfF821Ps1GJFFMWXQadt9r0jLvKmRPPMffe1S\B5TGsJoeip2Ok
Miscellaneous:
Searches for the following windows:
- ClassName: 'button' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
