Win32.HLLW.Autoruner2.9618
Added to the Dr.Web virus database:
2014-02-20
Virus description added:
2014-03-02
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Image File Execution Options\ctfmon.exe] 'Debugger' = 'avgcntl.exe'
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'ctfmon.exe' = 'ctfmon.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\RECYCLER\S-1-6-20-9723590193-0193865940-937593904-1600\avgregmon.exe
- <Drive name for removable media>:\RECYCLER\S-1-6-20-9723590193-0193865940-937593904-1600\Desktop.ini
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
blocks the following features:
Creates and executes the following:
Executes the following:
- '<SYSTEM32>\ipconfig.exe' /flushdns
Injects code into
the following system processes:
Terminates or attempts to terminate
the following user processes:
- GUARD.EXE
- fsav32.exe
- nod32.exe
- ntvdm.exe
- spidernt.exe
- fsav.exe
- bdagent.exe
- 360tray.exe
- bdss.exe
- Drweb32w.exe
- ClamWin.exe
Hides the following processes:
Modifies file system :
Creates the following files:
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\RECYCLER\S-1-6-20-9723590193-0193865940-937593904-1600\avgregmon.exe
- <SYSTEM32>\avgcntl.exe
Modifies the HOSTS file.
Deletes itself.
Network activity:
Connects to:
- '25#.#55.255.255':6501
- '25#.#55.255.255':6980
- '25#.#55.255.255':22048
- '25#.#55.255.255':7302
- '25#.#55.255.255':31960
- 'or####.flash-adobe.info':9103
- 'da####.dwn-adobe.info':7302
- '25#.#55.255.255':9103
- '25#.#55.255.255':8764
UDP:
- DNS ASK ho##.#wn-adobe.info
- DNS ASK sp##.##ash-adobe.info
- DNS ASK jo###.#rv-adobe.info
- DNS ASK da####.dwn-adobe.info
- DNS ASK or####.flash-adobe.info
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: '(null)'
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