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Win32.HLLW.Autoruner2.15056
Added to the Dr.Web virus database:
2014-05-30
Virus description added:
2014-05-31
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /T'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /N'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /Q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /C'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /b'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /V'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /i'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /m'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /S'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /H'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /J'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /r'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /E'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /G'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /U'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'kuivai' = '%HOMEPATH%\kuivai.exe /W'
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>:\yrH.ico
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\kuivai.exe
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\kuivaix.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>:\kuivai.exe
<Drive name for removable media>:\kuivaix.exe
<Drive name for removable media>:\yrH.ico
%HOMEPATH%\kuivai.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: 'Shell_TrayWnd' WindowName: '(null)'
ClassName: 'Indicator' WindowName: '(null)'
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