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Win32.HLLW.Autohit.15315
Added to the Dr.Web virus database:
2014-11-21
Virus description added:
2014-11-21
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>\wbem\wmiadap.exe' /R /T
'<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%\lclzalv
%TEMP%\aut2.tmp
%TEMP%\~ip.tmp
<SYSTEM32>\autorun.inf
%TEMP%\arwjshw
%TEMP%\aut1.tmp
%TEMP%\suicide.bat
<SYSTEM32>\csrcs.exe
Sets the 'hidden' attribute to the following files:
<SYSTEM32>\autorun.inf
<SYSTEM32>\csrcs.exe
Deletes the following files:
%TEMP%\~ip.tmp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\n09230945[1].asp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\n09230945[1].asp
<SYSTEM32>\PerfStringBackup.TMP
<SYSTEM32>\wbem\Performance\WmiApRpl.ini
%TEMP%\arwjshw
%TEMP%\aut1.tmp
%TEMP%\aut2.tmp
%HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\n09230945[1].asp
%TEMP%\lclzalv
Deletes itself.
Network activity:
Connects to:
'fl#.##m6nom6.com':9348
'ki#.##akapatama.com':7872
'ch####p.dyndns.org':80
'pi####pam.orz.hm':6854
'www.wh###smyip.com':80
TCP:
HTTP GET requests:
www.wh###smyip.com/?rn#########################################
ch####p.dyndns.org/?rn#########################################
www.wh###smyip.com/automation/n09230945.asp
UDP:
DNS ASK fl#.##m6nom6.com
DNS ASK ki#.##akapatama.com
DNS ASK ch####p.dyndns.org
DNS ASK pi####pam.orz.hm
DNS ASK www.wh###smyip.com
Miscellaneous:
Searches for the following windows:
ClassName: 'Shell_TrayWnd' WindowName: ''
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