Win32.HLLW.Autoruner1.28768
Added to the Dr.Web virus database:
2012-10-09
Virus description added:
2012-10-26
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{N0UTV285-LOY0-U7SF-LK77-03226777VA5J}] 'StubPath' = '%WINDIR%\Microsoft\Update.exe Restart'
- [<HKLM>\SOFTWARE\Microsoft\Active Setup\Installed Components\{N0UTV285-LOY0-U7SF-LK77-03226777VA5J}] 'StubPath' = ''
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'Policies' = ''
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer\Run] 'Policies' = ''
Malicious functions:
Creates and executes the following:
- %WINDIR%\Microsoft\Update.exe
Injects code into
the following system processes:
Modifies file system :
Creates the following files:
- %TEMP%\XxX.xXx
- %TEMP%\UuU.uUu
- %APPDATA%\logs.dat
- %WINDIR%\Microsoft\Update.exe
- %TEMP%\XX--XX--XX.txt
Sets the 'hidden' attribute to the following files:
- %APPDATA%\logs.dat
- %WINDIR%\Microsoft\Update.exe
Deletes the following files:
- %TEMP%\XxX.xXx
- %TEMP%\UuU.uUu
- %TEMP%\XX--XX--XX.txt
Deletes itself.
Network activity:
Connects to:
- 'co#####ilhar.no-ip.org':1338
UDP:
- DNS ASK co#####ilhar.no-ip.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
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