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Win32.HLLM.Siggen.89
Added to the Dr.Web virus database:
2013-11-14
Virus description added:
2013-11-15
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Userinit' = '<SYSTEM32>\userinit.exe,<SYSTEM32>\73322.exe'
Malicious functions:
Executes the following:
'<SYSTEM32>\ntvdm.exe' -f -i2
'<SYSTEM32>\ntvdm.exe' -f -i1
Modifies file system :
Creates the following files:
<SYSTEM32>\rmsx.exe
<SYSTEM32>\msx.dat
<SYSTEM32>\logonin.exe
<SYSTEM32>\newedi.ocx
%WINDIR%\Temp\scs1.tmp
%WINDIR%\Temp\scs4.tmp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\watch[1]
%WINDIR%\Temp\scs2.tmp
%WINDIR%\Temp\scs3.tmp
<SYSTEM32>\netsturt.exe
<SYSTEM32>\msx.com
<SYSTEM32>\shotdawm.exe
<SYSTEM32>\73322.exe
<SYSTEM32>\smuu.exe
<SYSTEM32>\tackmen.exe
<SYSTEM32>\regservr.exe
<SYSTEM32>\conami.exe
<SYSTEM32>\tashutdm.exe
Deletes the following files:
%WINDIR%\Temp\scs4.tmp
%TEMP%\~DF1F0E.tmp
%WINDIR%\Temp\scs2.tmp
%WINDIR%\Temp\scs1.tmp
%WINDIR%\Temp\scs3.tmp
Network activity:
Connects to:
'74.##5.232.51':25
'www.yo##ube.com':80
'localhost':1035
TCP:
HTTP GET requests:
www.yo##ube.com/watch?v=###########
UDP:
DNS ASK gs####85.google.com
DNS ASK www.yo##ube.com
Miscellaneous:
Searches for the following windows:
ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-b58.b5c.390002'
ClassName: 'MS_AutodialMonitor' WindowName: '(null)'
ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
ClassName: 'ConsoleWindowClass' WindowName: 'ntvdm-b40.b44.380001'
ClassName: '' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
ClassName: 'IEFrame' WindowName: '(null)'
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