Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe <SYSTEM32>\fservice.exe'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{5Y99AE78-58TT-11dW-BE53-Y67078979Y}] 'StubPath' = '%WINDIR%\system\sservice.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'DirectX For Microsoft® Windows' = '<SYSTEM32>\fservice.exe'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks the following features:
- System Restore (SR)
Creates and executes the following:
- '%WINDIR%\services.exe' -XP
- '<SYSTEM32>\fservice.exe'
- '%TEMP%\396.exe'
Executes the following:
- '<SYSTEM32>\net1.exe' STOP navapsvc
- '<SYSTEM32>\cmd.exe' /c %TEMP%\396.exe.bat
- '<SYSTEM32>\net1.exe' STOP srservice
- '<SYSTEM32>\net.exe' STOP srservice
- '<SYSTEM32>\net.exe' STOP navapsvc
Installs hooks to intercept notifications
on keystrokes:
- Handler for all processes: <SYSTEM32>\winkey.dll
Terminates or attempts to terminate
the following user processes:
- nod32.exe
- outpost.exe
- mpftray.exe
- NAVAPW32.EXE
- zapro.exe
- smc.exe
- ntvdm.exe
- ZONEALARM.EXE
- MCAGENT.EXE
- GUARD.EXE
- AVP.EXE
- AVP32.EXE
- AVGCC32.EXE
- AVGCTRL.EXE
- AVPCC.EXE
- fsav.exe
- fsav32.exe
- AVPM.EXE
- AVSYNMGR.EXE
Modifies file system :
Creates the following files:
- %WINDIR%\services.exe
- <SYSTEM32>\winkey.dll
- <SYSTEM32>\reginv.dll
- %TEMP%\396.exe
- <SYSTEM32>\fservice.exe
- %WINDIR%\system\sservice.exe
Sets the 'hidden' attribute to the following files:
- %WINDIR%\services.exe
- %WINDIR%\system\sservice.exe
- <SYSTEM32>\fservice.exe
Deletes the following files:
- %TEMP%\396.exe
- %WINDIR%\system\sservice.exe
- <SYSTEM32>\fservice.exe
Network activity:
Connects to:
- 'wa####013.no-ip.biz':4110
- 'wa####013.no-ip.biz':41100
- 'wa####013.no-ip.biz':4112
UDP:
- DNS ASK wa####013.no-ip.biz
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: 'ProConnective'
- ClassName: '' WindowName: 'Windows services '
- ClassName: 'Shell_TrayWnd' WindowName: ''
- ClassName: '' WindowName: 'Windows services '
- ClassName: '' WindowName: 'Windows Logon Service '
- ClassName: '' WindowName: ''
