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Win32.HLLW.Autoruner.59404
Added to the Dr.Web virus database:
2011-09-19
Virus description added:
2011-09-19
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /Y'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /b'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /q'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /s'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /J'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /h'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /N'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /a'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /d'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /t'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /M'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /g'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /F'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /Z'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /R'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /o'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /P'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /U'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /l'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /C'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /v'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /W'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'yoesaug' = '%HOMEPATH%\yoesaug.exe /i'
Creates the following files on removable media:
<Drive name for removable media>:\Passwords.exe
<Drive name for removable media>:\RCX3.tmp
<Drive name for removable media>:\RCX2.tmp
<Drive name for removable media>:\RCX6.tmp
<Drive name for removable media>:\RCX5.tmp
<Drive name for removable media>:\RCX4.tmp
<Drive name for removable media>:\Secret.exe
<Drive name for removable media>:\yoesaug.exe
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\Porn.exe
<Drive name for removable media>:\RCX1.tmp
<Drive name for removable media>:\Sexy.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>:\yoesaug.exe
<Drive name for removable media>:\autorun.inf
%HOMEPATH%\yoesaug.exe
Deletes the following files:
<Drive name for removable media>:\Passwords.exe
<Drive name for removable media>:\Porn.exe
<Drive name for removable media>:\Sexy.exe
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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