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Win32.HLLW.Autoruner2.8880
Added to the Dr.Web virus database:
2014-02-24
Virus description added:
2014-02-25
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] '577e5e12b9e77a0387ef7a94f09d0f46' = '"%TEMP%\sys.exe" ..'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '577e5e12b9e77a0387ef7a94f09d0f46' = '"%TEMP%\sys.exe" ..'
Creates or modifies the following files:
%HOMEPATH%\Start Menu\Programs\Startup\577e5e12b9e77a0387ef7a94f09d0f46.exe
Malicious functions:
To bypass firewall, removes or modifies the following registry keys:
[<HKLM>\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%TEMP%\sys.exe' = '%TEMP%\sys.exe:*:Enabled:sys.exe'
Creates and executes the following:
'%TEMP%\sys.exe'
'<LS_APPDATA>WtuqAkMvtQ.exe'
Executes the following:
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%TEMP%\sys.exe" "sys.exe" ENABLE
'<SYSTEM32>\rundll32.exe' <SYSTEM32>\shimgvw.dll,ImageView_Fullscreen <LS_APPDATA>KWRlbtcrXc.jpeg
Modifies file system :
Creates the following files:
%HOMEPATH%\Recent\Application DataKWRlbtcrXc.lnk
%HOMEPATH%\Recent\Local Settings.lnk
%TEMP%\sys.exe
<LS_APPDATA>WtuqAkMvtQ.exe
<LS_APPDATA>KWRlbtcrXc.jpeg
Network activity:
Connects to:
've#####a919.no-ip.biz':1177
UDP:
DNS ASK ve#####a919.no-ip.biz
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: '(null)'
ClassName: 'Shell_TrayWnd' WindowName: '(null)'
ClassName: 'ShImgVw:CPreviewWnd' WindowName: '(null)'
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