Technical Information
To ensure autorun and distribution
Modifies the following registry keys
- [<HKCU>\Software\Microsoft\Windows\CurrentVersion\Run\] 'yoamuid' = '%HOMEPATH%\yoamuid.exe /Y'
Creates the following files on removable media
- <Drive name for removable media>:\autorun.inf
- <Drive name for removable media>:\video_1.exe
- <Drive name for removable media>:\clip_480_5sec_6mbps_h264.exe
- <Drive name for removable media>:\2.exe
- <Drive name for removable media>:\13.exe
- <Drive name for removable media>:\3.exe
- <Drive name for removable media>:\weeklysheet1215.exe
- <Drive name for removable media>:\applicantform_en.exe
- <Drive name for removable media>:\508softwareandos.exe
- <Drive name for removable media>:\lisp_success.exe
- <Drive name for removable media>:\d0068197bb5a41fea16a220c45390606.exe
- <Drive name for removable media>:\uep_form_786_bulletin_1726i602.exe
- <Drive name for removable media>:\toolbar.exe
- <Drive name for removable media>:\dialmap.exe
- <Drive name for removable media>:\default.exe
- <Drive name for removable media>:\dashborder_96.exe
- <Drive name for removable media>:\archer.exe
- <Drive name for removable media>:\join.exe
- <Drive name for removable media>:\000814251_video_01.exe
- <Drive name for removable media>:\split.exe
- <Drive name for removable media>:\yoamuid.exe
- <Drive name for removable media>:\dashborder_144.exe
- <Drive name for removable media>:\2015-02-worms-nanoparticle-toxicity.exe
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%\yoamuid.exe
Sets the 'hidden' attribute to the following files
- %HOMEPATH%\yoamuid.exe
- <Drive name for removable media>:\autorun.inf
Network activity
Connects to
- '255.255.255.255':8000
UDP
- DNS ASK ns#.##ayer1352.com
- DNS ASK ns#.##ayer1352.net
Miscellaneous
Creates and executes the following
- '%HOMEPATH%\yoamuid.exe'
