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Win32.HLLM.Belarus
Added to the Dr.Web virus database:
2012-10-02
Virus description added:
2012-10-18
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'shell' = 'Explorer.exe sychost.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'WinIcons' = '<SYSTEM32>\winicons.exe'
Creates the following files on removable media:
<Drive name for removable media>:\sysconf.exe
Malicious functions:
Executes the following:
<SYSTEM32>\reg.exe ADD HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Run /v WinIcons /t REG_SZ /d <SYSTEM32>\winicons.exe /f
Modifies file system :
Creates the following files:
<SYSTEM32>\sychost.exe
C:\log.txt
<Current directory>\8286024503.exe
<SYSTEM32>\winicons.exe
C:\good_dogs.scr
Deletes the following files:
<Current directory>\8286024503.exe
Network activity:
Connects to:
'ma##.narod.ru':25
'ir#.mgts.by':6667
'ir#.tut.by':6667
UDP:
DNS ASK na##d.ru
DNS ASK ma##.narod.ru
DNS ASK ui#.nnov.ru
DNS ASK ir#.tut.by
DNS ASK ir#.mgts.by
DNS ASK ho#t
Miscellaneous:
Searches for the following windows:
ClassName: 'Indicator' WindowName: ''
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