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Win32.HLLW.Autohit.15730
Added to the Dr.Web virus database:
2015-07-03
Virus description added:
2015-07-03
Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
[<HKLM>\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon] 'Shell' = 'Explorer.exe csrcs.exe'
[<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\policies\Explorer\Run] 'csrcs' = '<SYSTEM32>\csrcs.exe'
Malicious functions:
Creates and executes the following:
Executes the following:
'<SYSTEM32>\ping.exe' -n 5 -w 250 127.0.0.1
'<SYSTEM32>\cmd.exe' /c %TEMP%\suicide.bat
Modifies file system :
Creates the following files:
%TEMP%\suicide.bat
%TEMP%\eeazqnu
%TEMP%\~ip.tmp
<SYSTEM32>\autorun.inf
%TEMP%\pevlmfh
%TEMP%\aut1.tmp
%TEMP%\aut2.tmp
<SYSTEM32>\csrcs.exe
Sets the 'hidden' attribute to the following files:
<SYSTEM32>\autorun.inf
<SYSTEM32>\csrcs.exe
Deletes the following files:
%TEMP%\eeazqnu
%TEMP%\~ip.tmp
%TEMP%\aut2.tmp
%TEMP%\aut1.tmp
%TEMP%\pevlmfh
Deletes itself.
Network activity:
Connects to:
'sa##.dip.jp':4590
'ki#.##akapatama.com':4800
'ch####p.dyndns.org':80
'ud#.##utiesu.com':4580
'www.wh###smyip.com':80
TCP:
HTTP GET requests:
http://www.wh###smyip.com/?rn#########################################
http://ch####p.dyndns.org/?rn#########################################
http://www.wh###smyip.com/automation/n09230945.asp
http://ch####p.dyndns.org/?rn########################################
UDP:
DNS ASK sa##.dip.jp
DNS ASK ki#.##akapatama.com
DNS ASK ch####p.dyndns.org
DNS ASK ud#.##utiesu.com
DNS ASK www.wh###smyip.com
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: ''
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