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Win32.HLLW.Autoruner3.938
Aggiunto al database dei virus Dr.Web:
2019-10-27
La descrizione è stata aggiunta:
2019-10-30
Technical Information
To ensure autorun and distribution
Modifies the following registry keys
[<HKLM>\SOFTWARE\Wow6432Node\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe SSVICHOSST.exe'
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Yahoo Messengger' = '<SYSTEM32>\SSVICHOSST.exe'
Creates or modifies the following files
%WINDIR%\tasks\at1.job
<SYSTEM32>\tasks\at1
Creates the following files on removable media
<Drive name for removable media>:\new folder.exe
<Drive name for removable media>:\ssvichosst.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)
Registry Editor (RegEdit)
modifies the following system settings:
[<HKCU>\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer] 'NofolderOptions' = '00000001'
Executes the following
'%WINDIR%\syswow64\at.exe' /delete /yes
'%WINDIR%\syswow64\at.exe' 09:00 /interactive /EVERY:m,t,w,th,f,s,su <SYSTEM32>\SSVICHOSST.exe
Modifies file system
Creates the following files
%WINDIR%\syswow64\ssvichosst.exe
%WINDIR%\ssvichosst.exe
%WINDIR%\syswow64\autorun.ini
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\desktop.ini
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\content.ie5\desktop.ini
<LS_APPDATA>\microsoft\windows\history\low\desktop.ini
<LS_APPDATA>\microsoft\windows\history\low\history.ie5\desktop.ini
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\content.ie5\index.dat
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\content.ie5\hd5xu3he\desktop.ini
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\content.ie5\gg213bbf\desktop.ini
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\content.ie5\ejcurt4s\desktop.ini
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\content.ie5\z7l1091w\desktop.ini
%APPDATA%\microsoft\windows\cookies\low\index.dat
<LS_APPDATA>\microsoft\windows\history\low\history.ie5\index.dat
Sets the 'hidden' attribute to the following files
%WINDIR%\syswow64\ssvichosst.exe
%WINDIR%\syswow64\autorun.ini
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\desktop.ini
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\content.ie5\desktop.ini
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\content.ie5\hd5xu3he\desktop.ini
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\content.ie5\gg213bbf\desktop.ini
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\content.ie5\ejcurt4s\desktop.ini
<LS_APPDATA>\microsoft\windows\<INETFILES>\low\content.ie5\z7l1091w\desktop.ini
<LS_APPDATA>\microsoft\windows\history\low\history.ie5\desktop.ini
<LS_APPDATA>\microsoft\windows\history\low\desktop.ini
<Drive name for removable media>:\autorun.inf
Network activity
UDP
DNS ASK nh#####nglan3.t35.com
DNS ASK nh#####nglan4.t35.com
Miscellaneous
Creates and executes the following
'%WINDIR%\syswow64\cmd.exe' /C AT /delete /yes' (with hidden window)
'%WINDIR%\syswow64\cmd.exe' /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su <SYSTEM32>\SSVICHOSST.exe' (with hidden window)
Executes the following
'%WINDIR%\syswow64\cmd.exe' /C AT /delete /yes
'%WINDIR%\syswow64\cmd.exe' /C AT 09:00 /interactive /EVERY:m,t,w,th,f,s,su <SYSTEM32>\SSVICHOSST.exe
'%WINDIR%\syswow64\rundll32.exe' "%WINDIR%\syswow64\Wininet.dll",DispatchAPICall 1
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Gratis per 3 mesi
Tutti i componenti di protezione
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