Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'eMule.exe' = '%TEMP%\eMule.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Policies' = '<SYSTEM32>\install\svchost.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = '<SYSTEM32>\install\svchost.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'HKLM' = '<SYSTEM32>\install\svchost.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'HKCU' = '<SYSTEM32>\install\svchost.exe'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{K865617R-DA2R-RBCI-T45T-FS226703RQ2T}] 'StubPath' = '<SYSTEM32>\install\svchost.exe Restart'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{K865617R-DA2R-RBCI-T45T-FS226703RQ2T}] 'StubPath' = '<SYSTEM32>\install\svchost.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
Injects code into
the following system processes:
- %WINDIR%\explorer.exe
the following user processes:
- svhost.exe
Modifies file system:
Creates the following files:
- %TEMP%\cmd.exe
- %TEMP%\eMule.exe
- %TEMP%\fwgw
- %WINDIR%\Temp\svhost.exe
- <SYSTEM32>\install\svchost.exe
- %TEMP%\%USERNAME%2.txt
- %APPDATA%\88E6680F\ak.tmp
- %APPDATA%\%USERNAME%-wchelper.dll
- %TEMP%\%USERNAME%7
- %TEMP%\%USERNAME%8
Sets the 'hidden' attribute to the following files:
- %WINDIR%\Temp\svhost.exe
- <SYSTEM32>\install\svchost.exe
- %APPDATA%\%USERNAME%-wchelper.dll
Deletes the following files:
- %TEMP%\%USERNAME%2.txt
- %TEMP%\%USERNAME%8
- %TEMP%\%USERNAME%7
Substitutes the following files:
- %TEMP%\%USERNAME%8
- %TEMP%\%USERNAME%7
Network activity:
Connects to:
- 'localhost':5555
- 'ko###5.ddns.net':5555
UDP:
- DNS ASK ko###5.ddns.net
Miscellaneous:
Creates and executes the following:
- '%TEMP%\cmd.exe'
- '%WINDIR%\Temp\svhost.exe'
Executes the following:
- '<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableTaskMgr /t REG_DWORD /d 1 /f
- '%WINDIR%\explorer.exe'
