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Win32.HLLW.Siggen.1538
Added to the Dr.Web virus database:
2010-12-20
Virus description added:
2014-07-14
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Terminal Server\Install\Software\Microsoft\Windows\CurrentVersion\Run] 'NVIDIA driver monitor' = '%WINDIR%\nvsvc32.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'NVIDIA driver monitor' = '%WINDIR%\nvsvc32.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'NVIDIA driver monitor' = '%WINDIR%\nvsvc32.exe'
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '%WINDIR%\nvsvc32.exe:*:Enabled:NVIDIA driver monitor'
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '<Full path to virus>' = '<Full path to virus>:*:Enabled:NVIDIA driver monitor'
Creates and executes the following:
Executes the following:
'<SYSTEM32>\net1.exe' stop wuauserv
'<SYSTEM32>\sc.exe' config wuauserv start= disabled
'<SYSTEM32>\net1.exe' stop MsMpSvc
'<SYSTEM32>\sc.exe' config MsMpSvc start= disabled
'<SYSTEM32>\net.exe' stop MsMpSvc
'<SYSTEM32>\netsh.exe' firewall add allowedprogram 1.exe 1 ENABLE
'<SYSTEM32>\net1.exe' stop
'<SYSTEM32>\net.exe' stop wuauserv
'%WINDIR%\explorer.exe' http://br#####sers.myspace.com/Browse/Browse.aspx
Searches for windows to
detect programs and games:
ClassName: 'MSNHiddenWindowClass' WindowName: '(null)'
ClassName: '_Oscar_StatusNotify' WindowName: '(null)'
Modifies file system :
Creates the following files:
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\index[1].php
%WINDIR%\nvsvc32.exe
Sets the 'hidden' attribute to the following files:
%WINDIR%\nvsvc32.exe
<Full path to virus>
Network activity:
Connects to:
'13#.#4.181.237':80
'24#.#56.38.240':1234
'localhost':1040
TCP:
UDP:
DNS ASK ve###tek.com
DNS ASK al#####shistory.info
DNS ASK jo######faccountancy.com
DNS ASK st###ntime.info
DNS ASK ds.###enix-cc.net
DNS ASK as###.ic.ac.uk
DNS ASK al#.##kibili.com
DNS ASK br#####sers.myspace.com
Miscellaneous:
Searches for the following windows:
ClassName: 'TskMultiChatForm.UnicodeClass' WindowName: '(null)'
ClassName: '__oxFrame.class__' WindowName: '(null)'
ClassName: 'HTMLSOURCEVIEW' WindowName: '(null)'
ClassName: 'Message Session' WindowName: '(null)'
ClassName: 'MS_WebcheckMonitor' WindowName: '(null)'
ClassName: '' WindowName: '(null)'
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'MS_AutodialMonitor' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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