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Win32.HLLW.Autoruner2.53647
Added to the Dr.Web virus database:
2019-07-27
Virus description added:
2019-07-29
Technical Information
To ensure autorun and distribution
Creates the following files on removable media
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\sys.exe
Malicious functions
To complicate detection of its presence in the operating system,
forces the system hide from view:
Injects code into
the following system processes:
%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe
Searches for registry branches where third party applications store passwords
[<HKCU>\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts]
[<HKCU>\Identities\{D6909BE8-EA09-4677-9635-1238019FCABC}\Software\Microsoft\Internet Account Manager\Accounts]
[<HKCU>\Identities\{D6909BE8-EA09-4677-9635-1238019FCABC}\Software\Microsoft\Office\Outlook\OMI Account Manager\Accounts]
[<HKCU>\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook]
[<HKCU>\Software\Microsoft\MSNMessenger]
[<HKCU>\Software\Yahoo\Pager]
[<HKCU>\Software\Microsoft\IdentityCRL]
[<HKCU>\Software\Microsoft\Windows Live Mail]
Reads files which store third party applications passwords
%APPDATA%\mozilla\firefox\profiles.ini
<LS_APPDATA>\google\chrome\user data\default\web data
<LS_APPDATA>\google\chrome\user data\default\login data
Modifies file system
Creates the following files
%APPDATA%\pid.txt
%APPDATA%\pidloc.txt
%TEMP%\dw.log
%TEMP%\140c4d.dmp
%TEMP%\holderwb.txt
Sets the 'hidden' attribute to the following files
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\sys.exe
Deletes the following files
Network activity
Connects to
'wh#####yipaddress.com':443
'fi###.#00webhost.com':21
'fi###.#00webhost.com':46856
'fi###.#00webhost.com':35221
TCP
HTTP GET requests
http://wh#####yipaddress.com/
UDP
DNS ASK wh#####yipaddress.com
DNS ASK fi###.#00webhost.com
Miscellaneous
Executes the following
'%CommonProgramFiles%\Microsoft Shared\DW\DW20.EXE' -x -s 2056
'%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /stext "%TEMP%\holdermail.txt"
'%WINDIR%\microsoft.net\framework\v2.0.50727\vbc.exe' /stext "%TEMP%\holderwb.txt"
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