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Win32.HLLW.Autohit.13454
Added to the Dr.Web virus database:
2013-09-09
Virus description added:
2013-09-09
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'
Creates the following files on removable media:
<Drive name for removable media>:\autorun.inf
<Drive name for removable media>:\tygdfe.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
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%\~ip.tmp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\whatismyip[1].0362119919
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\n09230945[1].asp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\checkip.dyndns[1].1295420702
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\whatismyip[1].0218075176
\Device\LanmanRedirector\10.0.0.2\PIPE\srvsvc
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\n09230945[1].asp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\checkip.dyndns[1].5333688504
<SYSTEM32>\csrcs.exe
%TEMP%\aut2.tmp
%TEMP%\aut1.tmp
%TEMP%\cdivndx
<SYSTEM32>\autorun.inf
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\n09230945[1].asp
%TEMP%\mishbgu
%TEMP%\suicide.bat
Sets the 'hidden' attribute to the following files:
<Drive name for removable media>:\tygdfe.exe
<Drive name for removable media>:\autorun.inf
<SYSTEM32>\csrcs.exe
<SYSTEM32>\autorun.inf
Deletes the following files:
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\n09230945[1].asp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\n09230945[1].asp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\n09230945[1].asp
%TEMP%\~ip.tmp
%TEMP%\cdivndx
%TEMP%\aut1.tmp
%TEMP%\mishbgu
%TEMP%\aut2.tmp
Deletes itself.
Network activity:
Connects to:
'vn###.moe.hm':6854
'<Private IP address>':445
'<Private IP address>':139
'kf##t.or.tp':6854
'www.wh###smyip.com':80
'ch####p.dyndns.org':80
'kx#.##infhri.com':6854
TCP:
HTTP GET requests:
www.wh###smyip.com/?rn#########################################
ch####p.dyndns.org/?rn#########################################
www.wh###smyip.com/automation/n09230945.asp
ch####p.dyndns.org/?rn#######################################
UDP:
DNS ASK kf##t.or.tp
DNS ASK vn###.moe.hm
DNS ASK kx#.##infhri.com
DNS ASK www.wh###smyip.com
DNS ASK ch####p.dyndns.org
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