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>:\vlqpwl.exe
Malicious functions:
Creates and executes the following:
- '<SYSTEM32>\csrcs.exe'
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:
- <SYSTEM32>\cmd.exe
Modifies file system :
Creates the following files:
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\whatismyip[1].9724369084
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\n09230945[1].asp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\checkip.dyndns[1].8925655819
- %TEMP%\~ip.tmp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\checkip.dyndns[1].9664819583
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\YPORKZYZ\checkip.dyndns[1].3675760205
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\2VAZY7AN\whatismyip[1].86171009974
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\whatismyip[1].7018531829
- \Device\LanmanRedirector\10.0.0.2\PIPE\srvsvc
- <SYSTEM32>\csrcs.exe
- %TEMP%\aut2.tmp
- %TEMP%\aut1.tmp
- %TEMP%\nkecuoi
- %TEMP%\suicide.bat
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\n09230945[1].asp
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\U98D4X8H\n09230945[1].asp
- %TEMP%\noezwte
- <SYSTEM32>\autorun.inf
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\vlqpwl.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%\nkecuoi
- %TEMP%\aut1.tmp
- %TEMP%\noezwte
- %TEMP%\aut2.tmp
Deletes itself.
Network activity:
Connects to:
- 'ki#.##akapatama.com':5300
- '<Private IP address>':445
- '<Private IP address>':139
- 'na###e.fam.cx':5000
- 'ru.###cluster.com':4900
- 'www.wh###smyip.com':80
- 'ch####p.dyndns.org':80
TCP:
HTTP GET requests:
- ch####p.dyndns.org/?rn#########################################
- www.wh###smyip.com/?rn########################################
- www.wh###smyip.com/?rn#########################################
- www.wh###smyip.com/automation/n09230945.asp
- ch####p.dyndns.org/?rn########################################
UDP:
- DNS ASK na###e.fam.cx
- DNS ASK ki#.##akapatama.com
- DNS ASK ch####p.dyndns.org
- DNS ASK ru.###cluster.com
- DNS ASK www.wh###smyip.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''
