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Win32.HLLW.Autohit.11186
Added to the Dr.Web virus database:
2010-12-28
Virus description added:
2014-05-05
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:
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\U98D4X8H\checkip.dyndns[1].6765648404
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\n09230945[1].asp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\whatismyip[1].7742375406
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\whatismyip[1].1466836792
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\checkip.dyndns[1].017979325
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\n09230945[1].asp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\n09230945[1].asp
<SYSTEM32>\csrcs.exe
%TEMP%\fbdhlro
%TEMP%\aut1.tmp
%TEMP%\aut2.tmp
<SYSTEM32>\autorun.inf
%TEMP%\suicide.bat
%TEMP%\tfqamwy
Sets the 'hidden' attribute to the following files:
<SYSTEM32>\autorun.inf
<SYSTEM32>\csrcs.exe
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%\fbdhlro
%TEMP%\aut1.tmp
%TEMP%\tfqamwy
%TEMP%\aut2.tmp
Deletes itself.
Network activity:
Connects to:
'3h######.trompizgerbo.com':9392
'ut##.#0afdone.com':7872
'uy###k.jpn.ph':7872
'www.wh###smyip.com':80
'ch####p.dyndns.org':80
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 3h######.trompizgerbo.com
DNS ASK ut##.#0afdone.com
DNS ASK uy###k.jpn.ph
DNS ASK www.wh###smyip.com
DNS ASK ch####p.dyndns.org
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