Win32.HLLW.Autoruner1.23917
Added to the Dr.Web virus database:
2012-07-27
Virus description added:
2012-08-17
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'SecurityCheck' = '<Current directory>\avcheck.exe'
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'SecurityCheck' = '<Full path to virus>'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
Malicious functions:
Creates and executes the following:
- <Current directory>\rndll.exe
- <Current directory>\avcheck.exe
Modifies file system :
Creates the following files:
- %APPDATA%\Microsoft\autorun.inf
- C:\crack.exe
- <Current directory>\rndll.exe
- %APPDATA%\Microsoft\drmcsupdater.exe
- <Current directory>\avcheck.exe
Sets the 'hidden' attribute to the following files:
- <Current directory>\rndll.exe
- <Drive name for removable media>:\autorun.inf
- <Full path to virus>
- <Current directory>\avcheck.exe
Deletes the following files:
- %APPDATA%\Microsoft\drmcsupdater.exe
Network activity:
Connects to:
- 'mt#####oncode.no-ip.org':1999
UDP:
- DNS ASK mt#####oncode.no-ip.org
Miscellaneous:
Searches for the following windows:
- ClassName: 'Indicator' WindowName: ''
- ClassName: 'Shell_traywnd' WindowName: ''
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