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Win32.HLLW.Autoruner2.56751
Added to the Dr.Web virus database:
2019-08-11
Virus description added:
2019-08-12
Technical Information
To ensure autorun and distribution
Modifies the following registry keys
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'njw0rm.exe' = '"%ProgramFiles%\njw0rm.exe"'
[<HKLM>\Software\Microsoft\Windows\CurrentVersion\Run] 'njw0rm.exe' = '"%ProgramFiles%\njw0rm.exe"'
Creates or modifies the following files
%HOMEPATH%\start menu\programs\startup\njw0rm.exe
Creates the following files on removable media
<Drive name for removable media>:\njw0rm.exe
<Drive name for removable media>:\my pictures.lnk
<Drive name for removable media>:\split.avi.lnk
<Drive name for removable media>:\delete.avi.lnk
<Drive name for removable media>:\archer.avi.lnk
<Drive name for removable media>:\dialmap.bmp.lnk
<Drive name for removable media>:\dial.bmp.lnk
<Drive name for removable media>:\default.bmp.lnk
<Drive name for removable media>:\toolbar.bmp.lnk
<Drive name for removable media>:\tileimage.bmp.lnk
<Drive name for removable media>:\dashborder_96.bmp.lnk
Malicious functions
To bypass firewall, removes or modifies the following registry keys
[<HKLM>\SYSTEM\CurrentControlSet\Services\SharedAccess\Parameters\FirewallPolicy\StandardProfile\AuthorizedApplications\List] '%ProgramFiles%\njw0rm.exe' = '%ProgramFiles%\njw0rm.exe:*:Enabled:...
Executes the following
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%ProgramFiles%\njw0rm.exe" "njw0rm.exe" ENABLE
Modifies file system
Creates the following files
%ProgramFiles%\njw0rm.exe.ini
%ProgramFiles%\njw0rm.exe
Sets the 'hidden' attribute to the following files
<Drive name for removable media>:\njw0rm.exe
Network activity
UDP
DNS ASK me#####cker.no-ip.com
Miscellaneous
Creates and executes the following
'%ProgramFiles%\njw0rm.exe' "del" <Full path to file>
'<SYSTEM32>\netsh.exe' firewall add allowedprogram "%ProgramFiles%\njw0rm.exe" "njw0rm.exe" ENABLE' (with hidden window)
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