Win32.HLLW.Autoruner.55012
Added to the Dr.Web virus database:
2011-07-24
Virus description added:
2011-07-25
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /k'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /w'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /t'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /I'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /S'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /Q'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /m'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /X'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /A'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /c'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /o'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /n'
- [<HKLM>\SYSTEM\ControlSet001\Control\Print\Providers\259638160] 'Name' = '"%TEMP%\2.tmp"'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /z'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /j'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /U'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /F'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /B'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cuhoh' = '%HOMEPATH%\cuhoh.exe /E'
Creates the following files on removable media:
- <Drive name for removable media>:\Documents.lnk
- <Drive name for removable media>:\Passwords.lnk
- <Drive name for removable media>:\Pictures.lnk
- <Drive name for removable media>:\Video.lnk
- <Drive name for removable media>:\Music.lnk
- <Drive name for removable media>:\wDS.ico
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\cuhoh.exe
- <Drive name for removable media>:\New Folder.lnk
- <Drive name for removable media>:\cuhohx.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Creates and executes the following:
- %HOMEPATH%\bellz.exe
- %HOMEPATH%\cuhoh.exe
- %HOMEPATH%\bellx.exe
- %HOMEPATH%\adnat.exe
- %HOMEPATH%\AgK2n88QS4.exe
Executes the following:
Injects code into
the following system processes:
Modifies settings of Windows Internet Explorer:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1A10' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{AEBA21FA-782A-4A90-978D-B72164C80120}' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '{A8A88C49-5EB2-4990-A1A2-0876022C854F}' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] 'currentlevel' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1601' = '00000000'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Internet Settings\Zones\3] '1400' = '00000000'
Modifies file system :
Creates the following files:
- %HOMEPATH%\cuhoh.exe
- %TEMP%\1.tmp
- %TEMP%\Rlb..bat
- %WINDIR%\Temp\3.tmp
- %HOMEPATH%\adnat.dll
- %HOMEPATH%\AgK2n88QS4.exe
- %HOMEPATH%\adnat.exe
- %HOMEPATH%\bellz.exe
- %HOMEPATH%\bellx.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\cuhoh.exe
- <Drive name for removable media>:\cuhohx.exe
- <Drive name for removable media>:\wDS.ico
- %HOMEPATH%\cuhoh.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files:
- %HOMEPATH%\AgK2n88QS4.exe
- %HOMEPATH%\bellz.exe
- %WINDIR%\Temp\3.tmp
- %TEMP%\2.tmp
- <DRIVERS>\etc\hosts
Network activity:
Connects to:
TCP:
HTTP POST requests:
- go###pverse.in/?in##############################################################################################################
UDP:
- DNS ASK go##le.ae
- DNS ASK go###pverse.in
- DNS ASK ik##.com
- DNS ASK si###ell.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
- ClassName: 'Shell_TrayWnd' WindowName: ''
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