Win32.HLLW.Autoruner.52376
Added to the Dr.Web virus database:
2011-06-24
Virus description added:
2011-06-24
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'syshost.exe' = '"%APPDATA%\syshost.exe"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'syshost.exe' = '"%APPDATA%\syshost.exe"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'svchost' = '%APPDATA%\cnbzoj\gtRgDw.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\{Administr\autorun.inf
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\{Administr\syshost.exe
Malicious functions:
Creates and executes the following:
- %APPDATA%\syshost.exe
- %APPDATA%\cnbzoj\gtRgDw.exe
Executes the following:
- <SYSTEM32>\reg.exe ADD "HKCU\Software\Microsoft\Windows\CurrentVersion\Run" /v "svchost" /t REG_SZ /d "%APPDATA%\cnbzoj\gtRgDw.exe" /f
- <SYSTEM32>\cmd.exe /c """%TEMP%\HXdGV.bat"" "
Injects code into
the following system processes:
- <SYSTEM32>\cscript.exe
- <SYSTEM32>\ctfmon.exe
- %WINDIR%\Explorer.EXE
the following user processes:
- nod.exe
- netxray.exe
- msnmsgr.exe
- nod32.exe
- pidgin.exe
- outpost.exe
- opera.exe
- msn6.exe
- lotroclient.exe
- lin.bin
- l2.bin
- magent.exe
- mpftray.exe
- miranda32.exe
- maplestory.exe
- wow.exe
- woool.exe
- windump.exe
- wsm.exe
- zlclient.exe
- zapro.exe
- ybclient.exe
- winbaram.exe
- smc.exe
- skype.exe
- qip.exe
- so3d.exe
- trillian.exe
- sro_client.exe
- spidernt.exe
- chrome.exe
- ccapp.exe
- cabalmain.exe
- dekaron.exe
- drweb386.exe
- drweb.exe
- dnf.exe
- bdsubmit.exe
- aion.exe
- ageofconan.exe
- __cd75efb816b2cc__.exe
- ash.exe
- bdss.exe
- bdagent.exe
- avgcc.exe
- ge.exe
- gc.exe
- fsavgui.exe
- googletalk.exe
- iexplore.exe
- httplook.exe
- gw.exe
- fsavaui.exe
- ekrn.exe
- egni.exe
- ecmd.exe
- elementclient.exe
- fsav32.exe
- fsav.exe
- firefox.exe
Modifies file system :
Creates the following files:
- %APPDATA%\syshost.exe
- %APPDATA%\cnbzoj\gtRgDw.exe
- %TEMP%\HXdGV.bat
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\{Administr\syshost.exe
- <Drive name for removable media>:\autorun.inf
- %APPDATA%\cnbzoj\gtRgDw.exe
- %APPDATA%\syshost.exe
Deletes the following files:
- <Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
- 'dr#####ork.no-ip.org':3211
UDP:
- DNS ASK dr#####ork.no-ip.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
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