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'
Creates the following services:
- [<HKLM>\SYSTEM\ControlSet001\Services\sr] 'ImagePath' = '<DRIVERS>\sr.sys'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Security Center
blocks the following features:
- System Restore (SR)
Executes the following:
- '<SYSTEM32>\net.exe' STOP navapsvc
- '<SYSTEM32>\net1.exe' STOP srservice
- '<SYSTEM32>\net1.exe' STOP navapsvc
- '<SYSTEM32>\fservice.exe'
- '%WINDIR%\services.exe' -XP
- '<SYSTEM32>\net.exe' STOP srservice
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:
- <SYSTEM32>\winkey.dll
- <SYSTEM32>\reginv.dll
- %WINDIR%\services.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:
- %WINDIR%\system\sservice.exe
- <SYSTEM32>\fservice.exe
Network activity:
Connects to:
- '21#.#01.97.7':53
- '15#.164.1.8':53
- '.###mail.com':25
- 'an###a.edu.tr':53
- '15#.#64.23.201':53
- 'to####awk.no-ip.com':4112
- 'to####awk.no-ip.com':41100
- '<L####NET_GATEWAY>':53
- 'to####awk.no-ip.com':4110
UDP:
- DNS ASK an###a.edu.tr
- DNS ASK ho##ail.com
- DNS ASK .###mail.com
- DNS ASK to####awk.no-ip.com
- DNS ASK to#####k73.tripod.com
- DNS ASK eg#.edu.tr
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: ''
