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Win32.HLLW.Autoruner2.18981
Added to the Dr.Web virus database:
2015-01-14
Virus description added:
2015-01-14
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '363' = 'C:\svchosto.exe'
[<HKLM>\SOFTWARE\Classes\CLSID\{e17d4f88-5564-41d1-83f2-00a0c90dc003}\shell\Open\Command] '' = '%PROGRAM_FILES%\Internet Explorer\IEXPLORE.EXE http://www.hao123.com/?tn=97405087_hao_pg
'
[<HKLM>\SOFTWARE\Classes\CLSID\{e17d4f88-5564-41d1-83f2-00a0c90dc002}\shell\Open\Command] '' = '%PROGRAM_FILES%\Internet Explorer\IEXPLORE.EXE http://shop1399222689674.1688.com/
'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '362' = 'h:\svchosto.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '36555' = '<SYSTEM32>\svchosto.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '360' = 'f:\svchosto.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] '361' = 'g:\svchosto.exe'
Creates the following services:
[<HKLM>\SYSTEM\ControlSet001\Services\IMWMRTYD] 'ImagePath' = '<DRIVERS>\IMWMRTYD.sys'
Creates the following files on removable media:
<Drive name for removable media>:\svchosto.exe
<Drive name for removable media>:\AutoRun.inf
Malicious functions:
To complicate detection of its presence in the operating system,
blocks execution of the following system utilities:
Windows Task Manager (Taskmgr)
Creates and executes the following:
'<SYSTEM32>\svchdsossss.exe'
'%WINDIR%\shevvootst.exe'
'<SYSTEM32>\Setup\servero.exe'
'<SYSTEM32>\svchdsort.exe'
Executes the following:
'<SYSTEM32>\wbem\wmiadap.exe' /R /T
'<SYSTEM32>\cmd.exe' /c c:\delus.bat
'<SYSTEM32>\regini.exe' regini.ini
Hooks the following functions in System Service Descriptor Table (SSDT):
NtWriteVirtualMemory, handler: IMWMRTYD.sys
NtReadVirtualMemory, handler: IMWMRTYD.sys
NtOpenProcess, handler: IMWMRTYD.sys
Sets a new unauthorized home page for Windows Internet Explorer.
Modifies file system :
Creates the following files:
C:\delus.bat
%WINDIR%\shevvootst.exe
C:\svchosto.exe
C:\AutoRun.inf
<SYSTEM32>\Setup\servero.exe
<DRIVERS>\IMWMRTYD.sys
<SYSTEM32>\svchdsort.exe
<SYSTEM32>\regini.ini
<SYSTEM32>\svchdsossss.exe
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\svchosto.exe
<Drive name for removable media>:\AutoRun.inf
C:\svchosto.exe
C:\AutoRun.inf
Deletes the following files:
<SYSTEM32>\svchdsossss.exe
<SYSTEM32>\regini.ini
<DRIVERS>\IMWMRTYD.sys
Moves the following files:
from <SYSTEM32>\Setup\servero.exe to %WINDIR%\svchost.exe
Network activity:
Connects to:
'localhost':2014
'ji#####wnload.2345.cn':80
'qw####800.gicp.net':2013
'localhost':1037
'www.ha##23.com':80
TCP:
HTTP GET requests:
ji#####wnload.2345.cn/jifen_2345/p3_k61539783_jg5WdGMIHVpWud2V9HTY2_v14.12.1.exe
www.ha##23.com/?tn################
UDP:
DNS ASK ji#####wnload.2345.cn
DNS ASK qw####800.gicp.net
DNS ASK www.ha##23.com
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: ''
ClassName: 'Indicator' WindowName: ''
ClassName: 'MS_AutodialMonitor' WindowName: ''
ClassName: 'MS_WebcheckMonitor' WindowName: ''
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