Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\software\Microsoft\Windows\CurrentVersion\Run] '635bc92bf4e08c984e476ea2940849f5' = '"%TEMP%\Explorer.exe" ..'
- [<HKLM>\software\Wow6432Node\Microsoft\Windows\CurrentVersion\Run] '635bc92bf4e08c984e476ea2940849f5' = '"%TEMP%\Explorer.exe" ..'
Creates or modifies the following files
- %APPDATA%\microsoft\windows\start menu\programs\startup\635bc92bf4e08c984e476ea2940849f5.exe
Creates the following files on removable media
- <Drive name for removable media>:\635bc92bf4e08c984e476ea2940849f5.exe
- <Drive name for removable media>:\autorun.inf
Malicious functions
To complicate detection of its presence in the operating system,
forces the system hide from view:
- hidden files
Executes the following
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%TEMP%\Explorer.exe" "Explorer.exe" ENABLE
Modifies file system
Creates the following files
- %TEMP%\explorer.exe
Sets the 'hidden' attribute to the following files
- <Drive name for removable media>:\635bc92bf4e08c984e476ea2940849f5.exe
- <Drive name for removable media>:\autorun.inf
- %TEMP%\explorer.exe
- %APPDATA%\microsoft\windows\start menu\programs\startup\635bc92bf4e08c984e476ea2940849f5.exe
Network activity
UDP
- DNS ASK em######count04.ddns.net
- DNS ASK em#######ount01.publicvm.com
- DNS ASK em######count01.ddns.net
- DNS ASK em######count02.ddns.net
- DNS ASK em######count03.ddns.net
- DNS ASK em######ount01.myq-see.com
- DNS ASK em#######ount03.publicvm.com
- DNS ASK em######count03.linkpc.net
- DNS ASK em######ount02.myq-see.com
- DNS ASK em######count01.linkpc.net
Miscellaneous
Creates and executes the following
- '%TEMP%\explorer.exe'
- '%WINDIR%\syswow64\netsh.exe' firewall add allowedprogram "%TEMP%\Explorer.exe" "Explorer.exe" ENABLE' (with hidden window)
