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:
- '<SYSTEM32>\csrcs.exe'
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%\suicide.bat
- %TEMP%\tjwbqeh
- %TEMP%\~ip.tmp
- <SYSTEM32>\autorun.inf
- %TEMP%\oektlkz
- %TEMP%\aut1.tmp
- %TEMP%\aut2.tmp
- <SYSTEM32>\csrcs.exe
Sets the 'hidden' attribute to the following files:
- <SYSTEM32>\autorun.inf
- <SYSTEM32>\csrcs.exe
Deletes the following files:
- %TEMP%\tjwbqeh
- %TEMP%\~ip.tmp
- %TEMP%\aut2.tmp
- %TEMP%\aut1.tmp
- %TEMP%\oektlkz
Deletes itself.
Network activity:
Connects to:
- 'so###ng.moe.hm':5400
- 'ki#.##akapatama.com':4600
- 'ch####p.dyndns.org':80
- 'se#.##zcluster.com':5300
- 'www.wh###smyip.com':80
TCP:
HTTP GET requests:
- http://www.wh###smyip.com/?rn#########################################
- http://ch####p.dyndns.org/?rn#########################################
- http://www.wh###smyip.com/automation/n09230945.asp
UDP:
- DNS ASK so###ng.moe.hm
- DNS ASK ki#.##akapatama.com
- DNS ASK ch####p.dyndns.org
- DNS ASK se#.##zcluster.com
- DNS ASK www.wh###smyip.com
Miscellaneous:
Searches for the following windows:
- ClassName: 'Shell_TrayWnd' WindowName: ''