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Win32.HLLW.Autoruner1.37358
Added to the Dr.Web virus database:
2013-05-17
Virus description added:
2013-05-17
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /E'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /T'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /J'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /D'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /u'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /P'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /N'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /h'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /M'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /C'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /w'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /I'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'holek' = '%HOMEPATH%\holek.exe /K'
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>:\ytLK.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\holek.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\holekx.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
Creates and executes the following:
Modifies file system :
Creates the following files:
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\holek.exe
<Drive name for removable media>:\holekx.exe
<Drive name for removable media>:\ytLK.ico
%HOMEPATH%\holek.exe
<Drive name for removable media>:\autorun.inf
Network activity:
Connects to:
'ns#.##ayer1532.com':8000
UDP:
DNS ASK ns#.##ayer1532.com
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
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