Win32.HLLW.Autohit.13145
Added to the Dr.Web virus database:
2013-06-03
Virus description added:
2013-06-15
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>:\uhmmus.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
Injects code into
the following system processes:
Modifies file system :
Creates the following files:
- %TEMP%\~ip.tmp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\whatismyip[1].8173031434
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\n09230945[1].asp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\checkip.dyndns[1].1335733879823
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\whatismyip[1].6134803435
- \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].63129122462
- <SYSTEM32>\csrcs.exe
- %TEMP%\aut2.tmp
- %TEMP%\aut1.tmp
- %TEMP%\osjlhqf
- <SYSTEM32>\autorun.inf
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\n09230945[1].asp
- %TEMP%\oubvcgc
- %TEMP%\suicide.bat
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\uhmmus.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%\osjlhqf
- %TEMP%\aut1.tmp
- %TEMP%\oubvcgc
- %TEMP%\aut2.tmp
Deletes itself.
Network activity:
Connects to:
- 'ki#.##akapatama.com':4700
- '<Private IP address>':445
- '<Private IP address>':139
- 'tu##.orz.hm':4580
- 'eg#.##zcluster.com':5400
- '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
UDP:
- DNS ASK tu##.orz.hm
- DNS ASK ki#.##akapatama.com
- DNS ASK ch####p.dyndns.org
- DNS ASK eg#.##zcluster.com
- DNS ASK www.wh###smyip.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
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