Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Classes\.exe] '' = 'pngfile'
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
- Windows Task Manager (Taskmgr)
- Registry Editor (RegEdit)
Creates and executes the following:
- '%TEMP%\run.exe' /pid=2752
- '%TEMP%\run.exe'
Executes the following:
- '<SYSTEM32>\net1.exe' user 14670 /add
- '<SYSTEM32>\net1.exe' user 4864 /add
- '<SYSTEM32>\net1.exe' user 7413 /add
- '<SYSTEM32>\net1.exe' user 3029 /add
- '<SYSTEM32>\net1.exe' user 21886 /add
- '<SYSTEM32>\net1.exe' user 25530 /add
- '<SYSTEM32>\net1.exe' user 19698 /add
- '<SYSTEM32>\net1.exe' user 28380 /add
- '<SYSTEM32>\net1.exe' user 5503 /add
- '<SYSTEM32>\net1.exe' user 15752 /add
- '<SYSTEM32>\net1.exe' user 22039 /add
- '<SYSTEM32>\net1.exe' user 27055 /add
- '<SYSTEM32>\ping.exe' localhost -n 1
- '<SYSTEM32>\rundll32.exe' user32.dll,MessageBeep
- '<SYSTEM32>\taskkill.exe' /pid=3004
- '<SYSTEM32>\logonui.exe' /status
- '<SYSTEM32>\rundll32.exe' user32.dll, LockWorkStation
- '<SYSTEM32>\net1.exe' user 21309 /add
- '<SYSTEM32>\net1.exe' user 31322 /add
- '<SYSTEM32>\net1.exe' user 11124 /add
- '<SYSTEM32>\net1.exe' user 7802 /add
- '<SYSTEM32>\net1.exe' user 30223 /add
- '<SYSTEM32>\net1.exe' user 22354 /add
- '<SYSTEM32>\net1.exe' user 18613 /add
- '<SYSTEM32>\taskkill.exe' /f /im iexplore*
- '<SYSTEM32>\taskkill.exe' /f /im firefox*
- '<SYSTEM32>\taskkill.exe' /f /im explorer.exe
- '<SYSTEM32>\wscript.exe' "%TEMP%\desktop.vbs"
- '<SYSTEM32>\wscript.exe' "%TEMP%\cpu.vbs"
- '<SYSTEM32>\taskkill.exe' /f /im chrome*
- '<SYSTEM32>\cmd.exe' /c ""%TEMP%\virus.bat" 0"
- '<SYSTEM32>\ntvdm.exe' -f -i1
- '<SYSTEM32>\taskkill.exe' /f /im msnmsgr.exe
- '<SYSTEM32>\taskkill.exe' /f /im Skype.exe
- '<SYSTEM32>\taskkill.exe' /f /im YahooMessenger.exe
- '<SYSTEM32>\rundll32.exe' USER32.DLL,SwapMouseButton
- '<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\Internet Settings" /v ProxyServer /d 0.0.0.0:0000 /f
- '<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /v DisableRegistryTools /t REG_DWORD /d 1 /f
- '<SYSTEM32>\net1.exe' user 31635 /add
- '<SYSTEM32>\reg.exe' add HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\System /f /v DisableCMD /t REG_DWORD /d 1 /f
- '<SYSTEM32>\reg.exe' add "HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings" /v ProxyEnable /d 1 /f
- '<SYSTEM32>\wscript.exe' "%TEMP%\opendisk.vbs"
- '<SYSTEM32>\wscript.exe' "%TEMP%\keyboard.vbs"
- '<SYSTEM32>\reg.exe' add "HKCU\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer" /v HideClock /t REG_DWORD /d 1 /f
- '<SYSTEM32>\ipconfig.exe' /release
- '<SYSTEM32>\attrib.exe' +h %HOMEPATH%\Desktop\*.*
Injects code into
the following user processes:
- chrome.exe
- msnmsgr.exe
Terminates or attempts to terminate
the following system processes:
- %WINDIR%\Explorer.EXE
the following user processes:
- chrome.exe
- firefox.exe
- iexplore.exe
- msnmsgr.exe
- YahooMessenger.exe
- skype.exe
Modifies settings of Windows Internet Explorer:
- [<HKLM>\SYSTEM\ControlSet001\Hardware Profiles\0001\Software\Microsoft\windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyEnable' = '00000001'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings] 'ProxyServer' = '0.0.0.0:0000'
Modifies file system :
Creates the following files:
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\27055.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\25530.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\30223.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\28380.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\21886.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\21309.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\22354.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\22039.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\7413.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\5503.bmp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\eicar.com[1].txt
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\7802.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\31322.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\3029.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\4864.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\31635.bmp
- %TEMP%\cpu.vbs
- %TEMP%\virus.bat
- %TEMP%\keyboard.vbs
- %TEMP%\desktop.vbs
- %TEMP%\run.exe
- %TEMP%\vermin.exe
- %WINDIR%\Temp\scs2.tmp
- %WINDIR%\Temp\scs1.tmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\15752.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\14670.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\19698.bmp
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\18613.bmp
- %TEMP%\cg.tmp
- %TEMP%\opendisk.vbs
- %ALLUSERSPROFILE%\Application Data\Microsoft\User Account Pictures\11124.bmp
- <Current directory>\cg.tmp
Deletes the following files:
- %TEMP%\cg.tmp
- %WINDIR%\Temp\scs2.tmp
- %WINDIR%\Temp\scs1.tmp
Network activity:
Connects to:
- 'any':80
- 'localhost':1041
TCP:
HTTP GET requests:
- anyhttp://www.eicar.org/download/eicar.com.txt
UDP:
- 'localhost':1039
- '23#.#55.255.250':1900
Miscellaneous:
Searches for the following windows:
- ClassName: 'IEFrame' WindowName: '(null)'
- ClassName: '' WindowName: '(null)'
- ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
- ClassName: 'MS_AutodialMonitor' WindowName: '(null)'
- ClassName: '(null)' WindowName: 'GINA Logon'
- ClassName: '(null)' WindowName: '(null)'
- ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-ae0.ae4.380001'
- ClassName: 'StatusWindowClass' WindowName: '(null)'
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
