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Win32.HLLW.Autoruner1.10991
Added to the Dr.Web virus database:
2012-01-16
Virus description added:
2012-01-16
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'svchost' = '%APPDATA%\svchost.exe'
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\Music.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
hidden files
file extensions
blocks the following features:
User Account Control (UAC)
Executes the following:
<SYSTEM32>\reg.exe add HKLM\SYSTEM\CurrentControlSet\services\wscsvc /v Start /t REG_DWORD /d 4 /f
<SYSTEM32>\net1.exe stop MpsSvc
<SYSTEM32>\net1.exe stop WerSvc
<SYSTEM32>\reg.exe add HKLM\SYSTEM\CurrentControlSet\services\WinDefend /v Start /t REG_DWORD /d 4 /f
<SYSTEM32>\net1.exe stop wscsvc
<SYSTEM32>\reg.exe add HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\SystemRestore /v DisableSR /t REG_DWORD /d 1 /f
<SYSTEM32>\net1.exe stop ERSvc
<SYSTEM32>\reg.exe add HKLM\SYSTEM\CurrentControlSet\services\wuauserv /v Start /t REG_DWORD /d 4 /f
<SYSTEM32>\net1.exe stop WinDefend
<SYSTEM32>\reg.exe delete HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run /v "Windows Defender" /f
<SYSTEM32>\reg.exe add HKLM\SOFTWARE\Microsoft\PCHealth\ErrorReporting /v DoReport /t REG_DWORD /d 0 /f
<SYSTEM32>\attrib.exe +s +h %APPDATA%\svchost.exe
<SYSTEM32>\reg.exe delete HKLM\SYSTEM\CurrentControlSet\Control\SafeBoot /f
<SYSTEM32>\reg.exe add HKLM\SYSTEM\CurrentControlSet\services\WerSvc /v Start /t REG_DWORD /d 4 /f
<SYSTEM32>\reg.exe add HKLM\SYSTEM\CurrentControlSet\services\BITS /v Start /t REG_DWORD /d 4 /f
<SYSTEM32>\reg.exe add HKLM\SYSTEM\CurrentControlSet\services\MpsSvc /v Start /t REG_DWORD /d 4 /f
<SYSTEM32>\reg.exe add HKLM\SYSTEM\CurrentControlSet\services\ERSvc /v Start /t REG_DWORD /d 4 /f
<SYSTEM32>\reg.exe add HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v SuperHidden /t REG_DWORD /d 0 /f
<SYSTEM32>\reg.exe add HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v Hidden /t REG_DWORD /d 2 /f
<SYSTEM32>\reg.exe add HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced\Folder\Hidden\SHOWALL /v CheckedValue /t REG_DWORD /d 0 /f
<SYSTEM32>\reg.exe add HKLM\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced /v HideFileExt /t REG_DWORD /d 1 /f
<SYSTEM32>\reg.exe add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v EnableLUA /t REG_DWORD /d 0 /f
<SYSTEM32>\reg.exe add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v PromptOnSecureDesktop /t REG_DWORD /d 0 /f
<SYSTEM32>\reg.exe add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v EnableVirtualization /t REG_DWORD /d 0 /f
<SYSTEM32>\reg.exe add HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System /v EnableInstallerDetection /t REG_DWORD /d 0 /f
<SYSTEM32>\net.exe stop BITS
<SYSTEM32>\net1.exe stop BITS
<SYSTEM32>\net.exe stop WerSvc
<SYSTEM32>\net.exe stop WinDefend
<SYSTEM32>\net1.exe stop wuauserv
<SYSTEM32>\net.exe stop wscsvc
<SYSTEM32>\net.exe stop wuauserv
<SYSTEM32>\net.exe stop MpsSvc
<SYSTEM32>\net.exe stop ERSvc
Modifies file system :
Creates the following files:
%CommonProgramFiles%\oiasdy.exe
C:\Music.exe
C:\autorun.inf
%APPDATA%\svchost.exe
%PROGRAM_FILES%\Internet Explorer\jsdklo.exe
Network activity:
Connects to:
TCP:
UDP:
DNS ASK ru###net.x10.mx
'<Private IP address>':1035
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