Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKLM>\SOFTWARE\Microsoft\Windows\CurrentVersion\Run] 'Windows·А»рЗЅ' = '<SYSTEM32>\crnjeufu.exe'
- [<HKCU>\Software\Microsoft\Internet Explorer\Extensions\{F2C63239-A5DB-487B-B283-4132351E7AB6}] 'Exec' = 'http://www.baidu.com/index.php?tn=mm667_pg'
Creates the following files on removable media:
- <Drive name for removable media>:\AutoRun.inf
- <Drive name for removable media>:\crnjeufu.exe
Malicious functions:
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Executes the following:
- <SYSTEM32>\attrib.exe E:\AutoRun.inf +s +r +h
- <SYSTEM32>\attrib.exe Z:\crnjeufu.exe +s +r +h
- <SYSTEM32>\attrib.exe Z:\AutoRun.inf +s +r +h
- <SYSTEM32>\attrib.exe C:\crnjeufu.exe +s +r +h
- <SYSTEM32>\attrib.exe C:\AutoRun.inf +s +r +h
- <SYSTEM32>\attrib.exe E:\crnjeufu.exe +s +r +h
Modifies file system :
Creates the following files:
- C:\crnjeufu.exe
- %HOMEPATH%\Favorites\Ўѕ °Щ¶ИКЧТі Ўї.lnk
- <SYSTEM32>\baidu.htm
- %HOMEPATH%\Local Settings\Temporary Internet Files\Content.IE5\KHMHGZ4F\0_200811211625[1].jpg
- <SYSTEM32>\crnjeufu.exe
- C:\AutoRun.inf
- %TEMP%\E_N4\HtmlView.fne
- %TEMP%\E_N4\shell.fne
- %TEMP%\E_N4\krnln.fnr
- %WINDIR%\baidu.ico
- %TEMP%\E_N4\ERawSock.fne
- %TEMP%\E_N4\eAPI.fne
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\crnjeufu.exe
- <Drive name for removable media>:\AutoRun.inf
- C:\crnjeufu.exe
- C:\AutoRun.inf
Network activity:
Connects to:
- 'bb#.##zhoudaily.com':80
- 'localhost':1036
TCP:
HTTP GET requests:
- bb#.##zhoudaily.com/upload/0_200811211625.jpg?02############################
UDP:
- DNS ASK bb#.##zhoudaily.com
- DNS ASK www.qq.com
- 'www.qq.com':0
Miscellaneous:
Searches for the following windows:
- ClassName: 'MS_WebcheckMonitor' WindowName: ''
- ClassName: 'MS_AutodialMonitor' WindowName: ''