Win32.HLLW.MyBot.805
Added to the Dr.Web virus database:
2009-11-09
Virus description added:
2011-12-15
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Microsoft dll Host Service ' = 'wkssr.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\RunServices] 'Microsoft dll Host Service ' = 'wkssr.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Microsoft dll Host Service ' = 'wkssr.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\RunServices] 'Microsoft dll Host Service ' = 'wkssr.exe'
Malicious functions:
Creates and executes the following:
- %WINDIR%\wkssr.exe 288 "<Full path to virus>"
Executes the following:
- <SYSTEM32>\net1.exe stop "Security Center"
- <SYSTEM32>\net.exe stop SharedAccess
- <SYSTEM32>\cmd.exe /c ""c:\a.bat" "
- <SYSTEM32>\net.exe stop "Security Center"
Terminates or attempts to terminate
the following user processes:
- mpftray.exe
- NAVAPW32.EXE
- GUARD.EXE
- MCAGENT.EXE
- smc.exe
- ZONEALARM.EXE
- nod32.exe
- outpost.exe
- fsav32.exe
- AVPCC.EXE
- AVPM.EXE
- AVGCC32.EXE
- AVGCTRL.EXE
- Drwebupw.exe
- fsav.exe
- AVSYNMGR.EXE
- bdss.exe
Modifies file system :
Creates the following files:
- C:\a.bat
- %WINDIR%\wkssr.exe
Sets the 'hidden' attribute to the following files:
Network activity:
Connects to:
UDP:
- DNS ASK ne.##wnsoul.us
- '<Private IP address>':1036
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
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