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Profil

Win32.HLLW.Autohit.15969

Added to the Dr.Web virus database: 2016-06-26

Virus description added:

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:
Executes the following:
  • '<SYSTEM32>\ping.exe' -n 5 -w 250 127.0.0.1
  • '<SYSTEM32>\cmd.exe' /c %TEMP%\suicide.bat
  • '<SYSTEM32>\csrcs.exe'
Modifies file system:
Creates the following files:
  • %TEMP%\~ip.tmp
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\checkip.dyndns[1].5074158332
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\n09230945[1].asp
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\whatismyip[1].4929198772
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\whatismyip[1].4476263018
  • %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\checkip.dyndns[1].5116869137
  • %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%\olrpvvl
  • %TEMP%\aut1.tmp
  • %TEMP%\suicide.bat
  • <SYSTEM32>\autorun.inf
  • %TEMP%\slosogt
  • %TEMP%\aut2.tmp
Sets the 'hidden' attribute to the following files:
  • <SYSTEM32>\autorun.inf
  • <SYSTEM32>\csrcs.exe
Deletes the following files:
  • %TEMP%\slosogt
  • %TEMP%\~ip.tmp
  • %TEMP%\aut2.tmp
  • %TEMP%\aut1.tmp
  • %TEMP%\olrpvvl
Deletes itself.
Network activity:
Connects to:
  • 'ju###lp.moe.hm':5400
  • 'ki#.##akapatama.com':4600
  • 'ch####p.dyndns.org':80
  • 'ee#.##utiesu.com':5300
  • 'www.wh###smyip.com':80
TCP:
HTTP GET requests:
  • http://www.wh###smyip.com/?rn#########################################
  • http://www.wh###smyip.com/?rn########################################
  • http://www.wh###smyip.com/automation/n09230945.asp
  • http://ch####p.dyndns.org/?rn#########################################
UDP:
  • DNS ASK ju###lp.moe.hm
  • DNS ASK ki#.##akapatama.com
  • DNS ASK ch####p.dyndns.org
  • DNS ASK ee#.##utiesu.com
  • DNS ASK www.wh###smyip.com
Miscellaneous:
Searches for the following windows:
  • ClassName: 'Shell_TrayWnd' WindowName: ''