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Win32.HLLW.Autoruner.58381
Added to the Dr.Web virus database:
2011-09-09
Virus description added:
2011-09-09
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cytul' = '%HOMEPATH%\cytul.exe /p'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cytul' = '%HOMEPATH%\cytul.exe /D'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cytul' = '%HOMEPATH%\cytul.exe /e'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cytul' = '%HOMEPATH%\cytul.exe /x'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cytul' = '%HOMEPATH%\cytul.exe /L'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cytul' = '%HOMEPATH%\cytul.exe /C'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cytul' = '%HOMEPATH%\cytul.exe /V'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cytul' = '%HOMEPATH%\cytul.exe /B'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cytul' = '%HOMEPATH%\cytul.exe /K'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'cytul' = '%HOMEPATH%\cytul.exe /R'
Creates the following files on removable media:
<Drive name for removable media>:\Pictures.lnk
<Drive name for removable media>:\Documents.lnk
<Drive name for removable media>:\Video.lnk
<Drive name for removable media>:\Music.lnk
<Drive name for removable media>:\Passwords.lnk
<Drive name for removable media>:\cytul.exe
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\New Folder.lnk
<Drive name for removable media>:\cytulx.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%\bxcess.exe
%HOMEPATH%\cytul.exe
%HOMEPATH%\axcess.exe
Executes the following:
Modifies file system :
Creates the following files:
%HOMEPATH%\cxcess.exe
%HOMEPATH%\cytul.exe
%HOMEPATH%\axcess.exe
%HOMEPATH%\bxcess.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\cytul.exe
<Drive name for removable media>:\cytulx.exe
%HOMEPATH%\cytul.exe
<Drive name for removable media>:\autorun.inf
Deletes the following files:
Network activity:
Connects to:
TCP:
HTTP POST requests:
me####taonline.net/muchahos.php?in##############################################################################################################
UDP:
DNS ASK me####taonline.net
DNS ASK ya##o.co.jp
DNS ASK qq.com
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
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