Technical Information
Malicious functions:
Creates and executes the following:
- '' (downloaded from the Internet)
Executes the following:
- '<SYSTEM32>\taskkill.exe' /t /f /im "<File name>.exe"
Injects code into
the following system processes:
Terminates or attempts to terminate
the following system processes:
- <SYSTEM32>\cmd.exe
Modifies file system:
Creates the following files:
- %APPDATA%\Pursued.yz
- %APPDATA%\hy.txt
- %APPDATA%\lv.txt
- %APPDATA%\silkworms.dll
- %APPDATA%\CopyRights.txt
- %APPDATA%\nb.txt
- %APPDATA%\mk.txt
- %APPDATA%\ja.txt
- %APPDATA%\Driver_Installer_Rollback.txt
- %TEMP%\nsy2.tmp\System.dll
- %HOMEPATH%\Local Settings\<INETFILES>\Content.IE5\KHMHGZ4F\putty[1].exe
- %TEMP%\tmp3.exe
Network activity:
Connects to:
- 'localhost':1037
- 'th#.#arth.li':80
TCP:
HTTP GET requests:
- http://th#.#arth.li/~sgtatham/putty/latest/x86/putty.exe
UDP:
- DNS ASK th#.#arth.li
Miscellaneous:
Searches for the following windows:
- ClassName: '' WindowName: ''
Creates and executes the following:
- '<Full path to file>'
- '%TEMP%\tmp3.exe'
Executes the following:
- '<SYSTEM32>\svchost.exe'
- '<SYSTEM32>\cmd.exe' /c taskkill /t /f /im "<File name>.exe" > NUL & ping -n 1 127.0.0.1 > NUL & del "<Full path to file>" > NUL
