Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'jiaasih' = '%HOMEPATH%\jiaasih.exe /k'
Creates the following files on removable media
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\jiaasih.exe
- <Drive name for removable media>:\split.exe
- <Drive name for removable media>:\rcx1.tmp
- <Drive name for removable media>:\rcx2.tmp
- <Drive name for removable media>:\correct.exe
- <Drive name for removable media>:\rcx3.tmp
- <Drive name for removable media>:\rcx4.tmp
- <Drive name for removable media>:\dashborder_120.exe
- <Drive name for removable media>:\rcx5.tmp
- <Drive name for removable media>:\coffee.exe
- <Drive name for removable media>:\rcx6.tmp
- <Drive name for removable media>:\tileimage.exe
- <Drive name for removable media>:\rcx7.tmp
Malicious functions
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Modifies file system
Creates the following files
- %HOMEPATH%\jiaasih.exe
Sets the 'hidden' attribute to the following files
- %HOMEPATH%\jiaasih.exe
- <Drive name for removable media>:\autorun.inf
Deletes the following files
- <Drive name for removable media>:\split.exe
- <Drive name for removable media>:\correct.exe
- <Drive name for removable media>:\dashborder_120.exe
- <Drive name for removable media>:\coffee.exe
- <Drive name for removable media>:\tileimage.exe
Substitutes the following files
- <Drive name for removable media>:\split.exe
- <Drive name for removable media>:\correct.exe
- <Drive name for removable media>:\dashborder_120.exe
- <Drive name for removable media>:\coffee.exe
- <Drive name for removable media>:\tileimage.exe
Network activity
Connects to
- 'ns#.##ayer1352.com':8003
UDP
- DNS ASK ns#.##ayer1352.com
Miscellaneous
Creates and executes the following
- '%HOMEPATH%\jiaasih.exe'
