Technical Information
To ensure autorun and distribution:
Modifies the following registry keys:
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run] 'Windows Service help' = 'C:\RECYCLER\S-1-5-21-3059311921-3747633820-368083200-2715\winservices.exe'
Creates the following files on removable media:
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\vshost.exe
Malicious functions:
Creates and executes the following:
- '%TEMP%\Your_Dad_Has_Shit_Fetish_Too.PIF'
Injects code into
the following system processes:
- <SYSTEM32>\ctfmon.exe
- %WINDIR%\Explorer.EXE
Modifies file system :
Creates the following files:
- C:\RECYCLER\S-1-5-21-3059311921-3747633820-368083200-2715\Desktop.ini
- C:\RECYCLER\S-1-5-21-3059311921-3747633820-368083200-2715\winservices.exe
- C:\autorun.inf
- %TEMP%\Your_Dad_Has_Shit_Fetish_Too.PIF
- C:\vshost.exe
Sets the 'hidden' attribute to the following files:
- <Drive name for removable media>:\autorun.inf
- C:\RECYCLER\S-1-5-21-3059311921-3747633820-368083200-2715\winservices.exe
- C:\autorun.inf
- C:\vshost.exe
- <Drive name for removable media>:\vshost.exe
Network activity:
UDP:
- DNS ASK wi#.##eapsocks.cn
- DNS ASK ns.###no-net.com
- DNS ASK wi#.####yingcenter-org.com
- 'ns.###no-net.com':7008
- 'wi#.####yingcenter-org.com':7008
- 'wi#.##eapsocks.cn':7008
Miscellaneous:
Searches for the following windows:
- ClassName: 'tSkMainForm.UnicodeClass' WindowName: ''
- ClassName: 'SkinWnd' WindowName: ''
- ClassName: 'Indicator' WindowName: ''
- ClassName: 'YahooBuddyMain' WindowName: 'Yahoo! Messenger'
- ClassName: 'YahooBuddyMain' WindowName: 'Yahoo! Messenger with Voice'
- ClassName: 'imAppSystemTrayHandler' WindowName: 'imApp'